Unprofessional and *********

I settled my finchoice Mobi account on the 27th March 2025 and overpaid the account,on the 28th I called and requested a refund and was told it will be done. On Monday the 31st it had not been done and I called again and was told it's been escalated.on Tuesday today I went and withdraw the access funds as it showed on the app, I only withdrew the extra amount I overpaid with that had not been refunded back to me. In a few minutes I received an SMS notifying me of my next installment of R4012 so I called to find out only to be told I must pay the instalment because I withdrew my own money...and I was charged interested. I followed the process but finchoice failed to refund now I must pay for taking matters into my own hands and doing their job! When I asked for management I was told to hold and later the call was cut off as I was holding. I need this sorted.