unnecessary items on my account

I Mr B Majola, have written to hello Peter on the 11/10/15, about jet store north gate, billing me for unnecessary stuff on my account, (my card no is: ***, Id no: ***), I have been to the store to complain and then told me to contact customer service, which I did. When I contacted customer service they were not willing to help me, all they said to me they will cancel everything. I'm still being billed for it. I would like to be refunded from 2012.