@saopaulo_10, Bruce, If the phone/card not functional, go back to the local AT&T office and talk to the owner/manager, tell manage what happened and tell him/her that you would like the phone repaired/replaced as this should have not happened. If possible take some form of proof that you were in that day, dated receipt,bill etc.. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.