Call centre harassing me for a payment

Since last week Friday i have been getting calls and sms from capitec consultants about a payment, and the strange thing about this is that it's not even my debit date and i told the 1st consultant that called me when is my payment date and this is not new its on their system but i haven't been getting any peace. dealing with capitec recently has been a nightmare. i went to the bank to settle a loan and the branch consultant didn't do his job properly and now i'm stuck with voicemail, messages and calls from capitec call centre agents calling non-stop about a payment that i need to make. an Error was on their end, they need to take this up with their consultant akhumzi instead i'm being harassed and i told this would be sorted out and i'm still waiting. It has been a nightmare and cause alot of distress. i don't understand the monies that keep popping up. i'm still waiting for someone to contact me with a resolution and having to deal with these calls. it's too much.