Best way to do it is either contact the seller, which have apparently tried to do with no success, or contact their carrier. If you are also an ATT user, maybe see if they can do it. Be nice and explain the issue and see what happens. If you don't succeed, wait a few minutes and try again. Eventually you will get a sympathetic person or supervisor who can escalate it and get it fixed.
Good luck. Let us know what works.
|