Pathetic aftercare

I am very unhappy with sleepmasters, I bought a bed in February 2021 and one of your consultants phoned me to confirm the monthly installment... She informed me that there was a insurance amount of R163.88 on my account. I explained to her that I have my own life and household insurance and I don't need that insurance from sleepmasters. She asked me to take my documents to sleepmasters Klerksdorp to proof that I have my own insurance in order for them to remove that extra R163. 38 amount from my debit order. I've submitted my documents twice and up until now this issue has not been resolved yet. According to Klerksdorp branch someone at head office is not doing their job, meanwhile sleepmasters keep deducting money from my account.... I'm very unhappy with this matter.