I just activated mine on AT&T, no wifi.I’ve read that that if you were given the code by a T-Mobile user, make sure whenever you’re using mlb.tv be on wifi. If you open up mlbtv app with a cellular provider that’s not Tmobile the subscription gets cancelled.
Anyone known if that is true or not?
The T-Mobile customer can generate a code, they sent it, you log in directly with your MLB.tv credentials. No need to exchange any info - for the Amazon GC I buy it for myself and PM my contact the claim code. Nothing outside PMs for us and we both are set again this year. Easy peasy.