I also was able to get a $200 AT&T card for my iphone 4 after having pre-ordered my 6+ from Apple. However, the first AT&T store I went to would not give me the $200, saying my 6+ purchase needed to be through AT&T.
I went to another AT&T store and they accepted my iphone 4, giving me the $200 card. The rep who helped me did access my account, so I'm not sure if my renewing of AT&T service qualified me for the promotional trade-in value.
I went to another AT&T store and they accepted my iphone 4, giving me the $200 card. The rep who helped me did access my account, so I'm not sure if my renewing of AT&T service qualified me for the promotional trade-in value.