I cancelled my insurance plan on my cellular device in April. That same month I received a $1.86 in credit. This lowered my phone bill. Yesterday, (5/11/17) I received the new bill and it was two dollars more than last month's bill. I looked at all the charges for each phone and realized that my portion was exactly $1.86 more than last month's. Therefore, it seems as though AT&T is still charging me for that insurance I cancelled last month. I did all the calculations and I don't see where the additional $1.86 came from. It seems that they've "hidden" it somewhere within my portion of the plan. I'll be calling AT&T today and discussing this matter with them. Anyone have this happen to them?