I had a slightly different experience - I was emailed that offer as I had bought FIFA14 from them on PS3, but today it was rejected because it was the 'wrong edition' - apparently the Ultimate Edition doesn't count - but surely they knew that before emailing me the offer....
After a fair amount of frustration, Amazon Customer Services came good and deposited £37 in my account - now which to buy - BF4, NFS, FIFA.... quality problem