Just been told getting pro rata refund.
If they are refusing just keep on at them.
Further to my earlier post, and having had further spurious requests for information already sent to my bank/credit card company (Natwest), I yesterday managed to speak to one of their disputes team (phone), and after using phrases like "will move my current and savings accounts if this continues" and "I will refer to the financial ombudsman ", I this morning received confirmation of the repayment, subject to the normal provisos of reclaim if I am repaid by the retailer etc.
Timing coincidental?? I don't think so.
Incidentally refund is for 12/14ths, on basis of games not played/games covered by ST
So persevere if your bank is proving difficult.