Disgusted

I logged a complaint with this company in November, this was based on the fact that they weren’t transparent and failed to disclose cost involved. I was contacted back and seemingly this matter was resolved and the last debit was in December, I received an email to confirm this but to my horror a further debit this month of R350, since their product was returned intact and they delivered no service after I ended my relationship with them end November, this is plain thieving. I want that money refunded and proof in a form of a formal letter that my banking details are removed from their data base.