Dave, I took this from the previous thread, you may have to validate it but it is interesting!

Terms and Conditions

To be eligible for a Price Promise Refund (PPR) offer you must have completed and made full payment for a Qualifying Flight(s) at ba.com using a credit or debit card. This PPR is subject to you complying with British Airways’ usual Terms and Conditions for the booking of flights online at ba.com. not a problem here, we are used to it

A Qualifying Flight means a return flight with a BA prefix, which originates and terminates in the UK. Travel must be on BA flights only and any code share flight or flight that is operated by two or more companies is excluded. This is very badly worded. A flight cannot be operated on the AOC of two companies anyway so this completely shoots BA in the foot here. There is absolutely no consideration of CityExpress AOC which is owned by BA plc, the franchise operations etc. Awful, shoot the in-house lawyer and give it to Sean in the City to sort out!

To be eligible for a PPR you must have found a bonafide fare for identical return flights to the Qualifying Flights. Easy The Flights must be cheaper than the flight purchased through ba.com and must be for the same route, with each leg of the trip flown in the same order, for the same dates, for the same flight numbers, in the same class of travel, for the same type of ticket (including fare conditions such as whether tickets are/are not flexible, refundable or changeable) and be sold in the UK over the internet in GBP currency. Easy The website containing the Lower Online Fare must provide capability to book that fare. Easy Websites showing fares but not providing booking capability will not qualify for the PPR.

Purchased booking must be the least expensive option for the chosen itinerary available on ba.com at the time of purchase. What does this mean? No Club, no First at least. No flexible tickets unless all lower classes sold out at the time, so we are down to the bottom of the bucket only.

Claims can only be accepted through the online form, click here. No attachments are allowed, so no proof can be given! No telephone PPR claims will be accepted. Incomplete PPR forms will be ineligible. Forms must be received by ba.com no later than midnight GMT on the same day you purchased your flight(s). BA reserves the right to verify evidence of Lower Online Fare purchased at the lower price. There is no evidence that they have done this, in particular, as you cannot send proof BA is not responsible for any PPR forms or delayed in transmission.

Price Promise does not apply where:

a. the Lower Online Fare makes use of fares that are not published and are not available to the general public. These include, but are not limited to, corporate discount fares, staff fares, consolidator fares, wholesaler fares, student fares, closed user group fares and fares where the carrier details are not known until after the purchase; or I have already pointed out that almost all of the websites can be excluded as consolidator and wholesaler exemptions
b. the Lower Online Fare has been discounted by the online retailer by use of coupons, loyalty rewards, redemption of frequent flyer miles or similar and other offers or incentives to reduce the total cost; or
c. the Lower Online Fare is for a travel package with inclusive airfareThis wipes out loads of expedia bookings in one go ; or
d. the difference in cost between the purchase on ba.com and the Lower Online Fare is the result of an error by the retailer of the Lower Online Fareno necessarily a valid excuse, how can you prove or disprove an error ; or
e. British Airways is unable to verify, using reasonable means, that the Lower Online Fare is available. This may be at any time within 24 hours of receipt of your claim at the discretion of British Airways;
f. You have exercised your right to a refund or have cancelled your booking before you apply for a PPR. British Airways’ usual terms for cancellation and refunds applybut this is stupid as it only seems to apply to non-refundable tickets unless all those have been sold! ; or
g. The fare is not a return fare. Hang on, they came up with Price Match when I booked a return fare yesterday. I think this is the basis of a damn good complaint

To be eligible for a PPR you must supply sufficient evidence of the cheaper quote in the form of a print out of the fare quote page if required to BA’s reasonable satisfaction, along with the conditions applicable to the cheaper quote. You should retain your print out until you have heard from BA that this is no longer required as proof. You cannot send it to them as they do not accept attachments.

If the claim meets all the Terms and Conditions of Price Promise, a refund of the difference between the purchase cost on ba.com and the cost of the Lower Online Fare, will be credited to the customer within 28 days of the claim having been verified by British Airways to the holder of the credit or debit card that was used to pay for the booking at ba.com. A letter of confirmation will be sent to the cardholder [2 days] prior to the refund being made A refund will be granted for each ticket within a booking that meets the Terms and Conditions of the Price Promise.

The refund of the difference between the purchase cost on ba.com and the total cost of the Lower Online Fare is the sole and exclusive compensation that will be made to qualified claimants who show that British Airways failed to meet its Price Promise.

The information that you provide to us will only be used to provide you with your PPR or to discuss your PPR request with you. We will destroy this information within 6 months. British Airways will not share your personal information with third parties outside the British Airways Group of companies. For further information on British Airways online privacy policy please click here.

One claim per booking made and paid for in full at ba.com only.

British Airways is the final authority on interpretation of these rules and no correspondence will be entered into. British Airways reserves the right to terminate or amend this offer at any time without notice. No correspondence equals straight to Trading Standards. They love airlines, see the numerous cases against Ryanair.

We see cases of three sets of correspondence to get the right result. That is entering into discussion about it. It would be much more efficient for somebody to be rejected and then off in a rant to Trading Standards.

I am interested in the cases of no return tickets, in particular as many of the single tickets are flexible and therefore, not limited to the chosen trip. The UK site does not appear in the Ts and Cs but others report it elsewhere in the system.

Good luck