*****ulent charges - no refund received.

I enquired about my account being charged even though my contract ended already and I specifically called in in October to notify them that I don’t want to renew, upgrade and I don’t want to convert to prepaid when my contract end. I don’t use the home internet and haven’t for months leading to the end of my contract. My contract ended and beginning of Dec I was charged for something I specifically said I don’t want. They do their own thing against my request and don’t know the reaching effects of their actions. It’s actually *****. I received a call on 24 Dec after I complained and they said they’ll investigate and revert. I still haven’t received my refund. Please pay me back my money. I gave no consent to convert to prepaid. Especially because I haven’t been using that sim for months. I have no intentions to use it.