got a replacement diamond but the old one still has active data

[laestrella]

I just got my replacement diamond because I was having troubles with the end button on my original diamond (which the new diamond fixed btw). anyway, i activated my new diamond online but for some reason i still have an active data connection on the old diamond. my new diamond can make calls and can receive data. the old diamond cannot make calls but is still getting my emails and i can surf the web and watch youtube. is this common? and no i am not connected to wi-fi. just curious as to if this has happened to anyone else.