Rain is De*****ing me

Rain double debited my account in October they said it was for September and October,I wasn’t connected the whole month of October but I paid,I then canceled their services and asked for refund they were unreachable until I went to their Instagram marketing account,that’s when they responded,

The one agent on FBmessenger told me if I don’t understand Billing they will break it down for me, disrespecting me and undermining my intelligence with my own money,They debited me again in November but their month to month services I’ve canceled,Today they debit me again what is that called ?