MOBICRED What a disappointment ...

I made a payment on the 24th December 2021 into my account to realize that I had put my ID number as the reference instead of the Account number, I immediately emailed my proof of payment at 6:37am and gave my account number and explaining my mistake, when the 27th December 2021 came around I still paid the same installment amount of which I could understand due to it being a short period. By the 4th January 2022 I still received no feedback and decided to send a follow up email on the 8th January 2022 I got told to send the proof of payment to a different email address of which I did, by the 13th January I still received no feedback so I sent another email asking for and update on the account. During last week I called and the lady said she would get back to me. Then on the 24th January 2022 I sent a whatsapp as I wasn't getting any success and they had sent me a statement reflecting my payment but the installment didn't come down. Today I spoke to them again and they said that I will still pay the same installment as the account wasn't corrected prior to the 15th of January 2022. She had the audacity to respond and say but you didn't use the correct Reference, I sent my email immediately after I made payment. Because people didn't do their jobs correctly or on time in fact at ALL!!! I advised that I will be disputing my debit order this month and they can do all the calling this time around. I chanced them for three weeks to do their jobs, I have always paid my account without fail and paid more than half into my account and this is the service I get, now I'm being told that it will reflect my account in the arrears, I DONT ACTUALLY CARE I have all the proof that it was the incompetence of mobicred I do not recommend them at all.