xfinity mobile scam

I went to the store because the last time I talked to someone at xfinity, they signed me up for an additional account. So, i had 2 accounts and it was on auto pay to a CC. 

It billed 2-3x a month and totaled in over $2000 of charges. Then, I went to the xfinity store, they said that they would cancel it out for me and help me out. I turned in BOTH modems. My friend kindly set me up with an internet under his name, THEN they also check to see if i was eligible for mobile services. I was approved and I was supposed to check to transfer my verizon account. Well, I delayed it, but for some reason i'm being BILLED for mobile now!! I JUST 1 ACCOUNT FROM XFINITY CANCELLED AND 1 MOBILE AND NEITHER THE STORE NOR THE PHONE CALL CAN DO IT CORRECTLY. At this time, I'm going to end up disputing it because it's continuing to be fraud when I already returned all the modems.