This looks like the usual POS issue. KVS Sabre/ITN (using UK POS) shows:
[KVS Availability Tool 3.2.0/Platinum - Sabre: ITN/UK-ASB]
Code:
DXB Dubai AE [OMDB]
AMM Amman Queen Alia Int'l JO [OJAI]
FRI 17 apr 2009
Carrier Flight From Depart To Arrive A/C St Availability
--------- ------ ---- --------- ---- --------- ---- ---- -----------------------------------------
RJ 613 DXB 07:30 AMM 09:40 321 0 J9 C9 D1 I0 Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9
RJ 611 DXB 15:00 AMM 17:10 321 0 J9 C9 D1 I0 Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9
Looking at Worldspan (with a US POS), there's no D availability on that date:
[KVS Availability Tool 3.2.0/Platinum - WSpan: ITN/US-TAP]
Code:
DXB Dubai AE [OMDB]
AMM Amman Queen Alia Int'l JO [OJAI]
FRI 17 apr 2009
Carrier Flight From Depart To Arrive A/C St Availability
--------- ------ ---- --------- ---- --------- ---- ---- --------------------------------------------
RJ 613 DXB 07:30 AMM 09:40 321 0 J9 C9 D0 I0 Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9 O9
RJ 611 DXB 15:00 AMM 17:10 321 0 J9 C9 D0 I0 Y9 B9 H9 K9 M9 L9 V9 S9 N9 Q9 O9
It's possible that a Jordanian POS could give you 2 D-bucket seats on that day. It might be worth calling RJ reservations to see. Try +962 6 5100000 on Skype.
The following day, with a US POS, we get D9, but only D1 for UK POS. Bizarre, certainly, but Revenue Management is clearly a very dark art.