Refund by a set date ?
Did they tell you they don’t do any refunds until the end of the month when accounts do them enmasse.
Funny how quick they take your money, but seem incapable of doing a refund.
They just dicked about, where rude very unhelpful etc etc, refund never happened, so my bank must be at fault, credits have been sent out, go to bank and get statements, waste my time, etc etc, will have to wait until the end of the month etc etc.
Took 3 months and jumping through credit card company hoops and they got my money back, and this was back in the late 90’s.
Since i got the internet about 8 years ago i now use it to pre-check anywhere i might online shop with.
Good luck with getting your money, most do but it might take a while.