Walmart myfamilymobile billing on closed account, no help on phone support #1255-Laurinburg Nationwide

At the end of May, begging of June we unlocked the phone and canceled our account. It took 3 calls to support for them to finally confess that I did in fact close my account, and the phone was not active. Yet I still get bills. Customer support would not help me, but made me send a email request. They seem to want to make it as difficult as possible to fix this. All the support persons where rude and argumentative. All my payment where prepaid, so how can they do this? Beware of the myfamilymobile trap!