Since they are both at Targets it make no sense at all about a transfer considering the info is already in there own computer system!!! I would go back and pretty much demand they fill the Ambien, If they still wont, just go to another pharmacy and trust me they will get it transferred.

Odd my daughter was 5 hours away at college and had loads of medications filled here and up there and never had a problem.

Sorry you have had this problem.