Poor customer service

M very dissatisfied with Capitec bank, I didn't get help at all teller was very irritated, I decided to leave before the matter could be resolved, I went to the bank cz they say i owe them when the debit order actually went off on my account, it shows on my statement as requested for me to bring after I brought the statement they it was reversed and the reversal isn't showing also on the statement, m very disappointed with Capitec I don't know what to do now as I'm being sent from pillar to post everytime I call their call center, this will ruin my credit score it's been over 2 years I never missed any payment why would I now sabotage myself when I'm left with 5 months to finish off the loan, they say the reversal was done telephonically, no one is providing the call recording cz they say their calls are recorded I'm thinking of contacting my lawyer cz I don't know how else to resolve this matter.