Yup, I too have had very good service from Amazon in the past, including past mix-ups with the ordering system and also have got timely resolution by email to any issues ensuring future purchases. This is the first time I've had to contact Play about this sort of thing and, whilst I understand completely I had no absolute claim to buy at the cheaper price, I thought considering the circumstances, they would have at least listened to my grievance and possibly done a deal considering the amount of custom I have with them in the past. Apparently that assumption was unfounded.
Don't get me wrong, I'm not going to cut off my nose to spite my face and if I see a ridiculously good deal from Play which is unavailable anywhere else, I'll still take advantage of it (remembering to press Checkout straight away of course!), but they certainly won't be my de facto choice of online shops like they used to be.