Was travelling to San Fancisco for about week. Have Ipad with me and signed up AT&T data plan of 2G in a month with my AT&T SIM came with ipad. didn't aware biz condition of auto-renew until I was changed again today after 30 days with $25 bill. i had to cancelled my account but still have no idea how to get my money back. tried anything i can find from AT&T online. nothing helpful.