Other North & South America Frequent Flyer Programs - LAN Argentina: Expertflyer shows availability in H fare, but LAN says only B fare

I am trying to book a LAN Argentina one-way flight for 12/28 from AEP-IGR. The flight number is LA 4022. I was told that only Y, B, and H fares are available to foreigners while the other fares are for Argentina residents only. H is the cheapest fare for foreigners, so I wanted to buy an H fare.

www.expertflyer.com shows the following availability for the flight:
Y9 B9 H9 K9 M9 L9 V4 S9 N4 Q9 O4

Here is the fare information for an H fare from www.expertflyer.com:
HEEFF036 LA H One-Way 120.00(USD) E -- / 6M

I go to www.lan.com and the site automatically gives me a B fare for $183. I call 1-800-IFLYLAN and the agent told me that H is unavailable for this flight and that only B is available. I tell the agent that there are at least 9 seats available in H according to www.expertflyer.com, and she told me that she cannot see such availability.

QUESTION:
1. Is expertflyer correct or is the agent correct?
2. Why is there this discrepancy?
3. Where can I buy the H fare?

I believe that fare basis is part of the South America airpass fare. You need minimum segments (I believe 2, but not sure) plus proof of your international ticket on LAN (or perhaps another OW carrier - I'm not really sure of all the rules).

Here are the fare rules for the H fare in question. It doesn't say anything about any minimum segments. Im I missing something?

--------------------------------------------------

ADVANCE RES/TICKETING
UNLESS OTHERWISE SPECIFIED
RESERVATIONS ARE REQUIRED FOR ALL SECTORS.
WHEN RESERVATIONS ARE MADE AT LEAST 15 DAYS BEFORE
DEPARTURE TICKETING MUST BE COMPLETED WITHIN 7 DAYS AFTER
RESERVATIONS ARE MADE.
OR - RESERVATIONS ARE REQUIRED FOR ALL SECTORS.
TICKETING MUST BE COMPLETED WITHIN 5 DAYS AFTER
RESERVATIONS ARE MADE.

MAXIMUM STAY
UNLESS OTHERWISE SPECIFIED
TRAVEL FROM LAST STOPOVER MUST COMMENCE NO LATER THAN 6
MONTHS AFTER DEPARTURE FROM FARE ORIGIN.

STOPOVERS
NONE UNLESS OTHERWISE SPECIFIED

TRANSFERS
UNLESS OTHERWISE SPECIFIED
UNLIMITED TRANSFERS PERMITTED ON THE PRICING UNIT
FARE BREAK AND EMBEDDED SURFACE SECTORS PERMITTED ON THE
FARE COMPONENT.

PERMITTED COMBINATIONS
UNLESS OTHERWISE SPECIFIED
ADD-ONS PERMITTED.
END-ON-END
END-ON-END COMBINATIONS PERMITTED. VALIDATE ALL FARE
COMPONENTS. FARES MUST BE SHOWN SEPARATELY ON THE
TICKET. TRAVEL MUST BE VIA THE POINT OF COMBINATION.
OPEN JAWS/ROUND TRIPS/CIRCLE TRIPS
FARES MAY BE COMBINED ON A HALF ROUND TRIP BASIS
-TO FORM SINGLE OR DOUBLE OPEN JAWS/ROUND TRIPS/CIRCLE
TRIPS.
PROVIDED -
COMBINATIONS ARE WITH ANY FARE FOR CARRIER LA/LP/XL/4M
IN ANY RULE IN THIS TARIFF.

SURCHARGES
NONE WITHIN ARGENTINA

TRAVEL RESTRICTIONS
UNLESS OTHERWISE SPECIFIED
VALID FOR TRAVEL COMMENCING ON/AFTER 15NOV 07.

SALES RESTRICTIONS
NONE FOR -FF TYPE FARES

PENALTIES
UNLESS OTHERWISE SPECIFIED NOTE - RULE LAUS IN IPRG
APPLIES
WITHIN ARGENTINA FOR -FF TYPE FARES
NOTE -
-CHANGES -
CHANGES ON OR BEFORE FLIGHT DEPARTURE DAY
DATE/FLIGHT CHANGES ARE PERMITTED WITHOUT ANY
CHARGE.
CHANGES AFTER FLIGHT DEPARTURE DAY
DATE/FLIGHT CHANGES PERMITTED AFTER FLIGHT
DEPARTURE DAY FOR A CHANGE FEE OF USD 25.00.
DATE/FLIGHT CHANGES FOR CHILDREN S AND INFANTS
TICKETS THE CORRESPONDING DISCOUNT WILL APPLY TO
THE CHANGE CHARGE OF USD 25.00.
DATE/FLIGHT CHANGES- IF THE ORIGINAL FARE IS NOT
AVAILABLE OR THE CHANGE DOES NOT COMPLY WITH THE
ORIGINAL FARE S CONDITIONS PASSENGER CAN PURCHASE
A SUPERIOR FARE BY PAYING THE DIFFERENCE AND THE
CHANGE FEE CHARGE.
DATE/FLIGHT CHANGES FOR TICKETS THAT HAVE BEEN
PARTIALLY USED- IT WILL BE CHARGED WITH THE
DIFFERENCE BETWEEN THE VALUE OF THE NEW TICKET AND
THE ORIGINAL TICKET PLUS DE CHANGE FEE CHARGE.
-REFUND-
REFUNDS ARE PERMITTED WITH A CHARGE OF USD 30.00.
REFUND FOR CHILDREN S AND INFANTS TICKETS THE
CORRESPONDING DISCOUNT WILL APPLY TO THE CHANGE
CHARGE OF USD 30.00
REFUNDS FOR TICKETS THAT HAVE BEEN PARTIALLY USED-
IT WILL BE REFUNDED WITH THE DIFFERENCE BETWEEN
THE VALUE OF THE ORIGINAL TICKET AND THE COST OF
THE TRIP ACTUALLY FLOWN MINUS THE CORRESPONDING
REFUND CHARGE.

TICKET ENDORSEMENT
UNLESS OTHERWISE SPECIFIED
THE ORIGINAL AND THE REISSUED TICKET MUST BE ANNOTATED -
REF FEE APPLIES - IN THE ENDORSEMENT BOX.

CHILDREN DISCOUNTS
UNLESS OTHERWISE SPECIFIED
ACCOMPANIED CHILD 2-11 - CHARGE 67 PERCENT OF THE FARE.
TICKET DESIGNATOR - CH AND PERCENT OF DISCOUNT
OR - INFANT UNDER 2 WITH A SEAT - CHARGE 67 PERCENT OF THE
FARE.
TICKET DESIGNATOR - IN AND PERCENT OF DISCOUNT
OR - 1ST INFANT UNDER 2 WITHOUT A SEAT - NO CHARGE
TICKET DESIGNATOR - IN AND PERCENT OF DISCOUNT
OR - UNACCOMPANIED CHILD 5-11 - CHARGE 67 PERCENT OF THE
FARE.
TICKET DESIGNATOR - CH AND PERCENT OF DISCOUNT.

MISCELLANEOUS PROVISIONS
UNLESS OTHERWISE SPECIFIED NOTE - RULE LAFF IN IPRG
APPLIES
WITHIN ARGENTINA
NOTE -
FOLLOWING CONDITIONS APPLY ON LAN OPERATED FLIGHTS
LANPASS
EARNS 125 PERCENT KILOMETERS
SEAT ASSIGNMENT
IT IS PERMITTED

VOLUNTARY CHANGES
UNLESS OTHERWISE SPECIFIED NOTE - RULE LAFF IN IPRG
APPLIES
NONE UNLESS OTHERWISE SPECIFIED

H is sold out. Expertflyer isn't viewing the direct link to LAN's system, but rather, a general availability from a GDS.

*** LAN CHILE ***
MON 28DEC09 BUENOS AIRES/IGUAZU *LA
NO MORE LATER FLTS 28DEC AEP IGR
CK ALT*ORIG EZE
1 AEP IGR 28/0925 1110 LA4022 Y9 B9 H0 K9 M0 L0 V0 S0 N0+320*C
2 AEP IGR 28/1115 1300 LA4024 Y9 B9 H9 K9 M9 L9 V4 S0 N0+320*C
3 AEP IGR 28/1355 1540 LA4028 Y9 B9 H9 K9 M9 L9 V4 S0 N0+320*C

H is sold out. Expertflyer isn't viewing the direct link to LAN's system, but rather, a general availability from a GDS.

*** LAN CHILE ***
MON 28DEC09 BUENOS AIRES/IGUAZU *LA
NO MORE LATER FLTS 28DEC AEP IGR
CK ALT*ORIG EZE
1 AEP IGR 28/0925 1110 LA4022 Y9 B9 H0 K9 M0 L0 V0 S0 N0+320*C
2 AEP IGR 28/1115 1300 LA4024 Y9 B9 H9 K9 M9 L9 V4 S0 N0+320*C
3 AEP IGR 28/1355 1540 LA4028 Y9 B9 H9 K9 M9 L9 V4 S0 N0+320*C

Now I realize it's from EF! Sorry for the dumb question.

H is sold out. Expertflyer isn't viewing the direct link to LAN's system, but rather, a general availability from a GDS.

That's not totally accurate. For various airlines, LA being one of them, if you specify the airline code as the only airline in the search we will do a direct connect availability request to get the data. So please make sure you specify LA as the only airline in the availability search.

-EFV

That's not totally accurate. For various airlines, LA being one of them, if you specify the airline code as the only airline in the search we will do a direct connect availability request to get the data. So please make sure you specify LA as the only airline in the availability search.

-EFV

I just did a search that specified LA as the only airline.

Departing AEP on 12/28/09 12:00 AM for IGR
Flying LA
Direct/Non-Stop Only

This is what I got:

LA 4022 AEP-IGR 12/28/09 9:25 AM Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9 O9
LA 4024 AEP-IGR 12/28/09 11:15 AM Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9 O9
LA 4028 AEP-IGR 12/28/09 1:55 PM Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9 O9

It's still showing H9 for LA 4022. The interesting thing is that the American Airlines website shows an H fare for LA 4022, but right after I enter my credit card number, I get some kind of message stating "The flight(s) or fare selected is no longer available. Please modify your request."

I definately want to fly LA 4022 on Dec 28. My other option would be to fly AR, which is sigificantly cheaper than LA's B fare, but my stay in Iguazu is only for 1 night, and a delayed flight on AR (which has a worse on-time record) would severely impact my trip.

QUESTIONS:
1. How likely is it that an "H" fare will become available sometime soon? Do you guys think I should just buy the "B" fare now or wait and see if the "H" fare becomes available again?