Poor service

My edgars account was handed over to Nimble group sometime last year I settled my account on the 26th of April which was R1874.93 and I called it 2 days after and I was told that the funds hasn't reflected as yet I should call in 2 days .

Which I did but still funds haven't reflected - I have been sending email to this company with no help, now when I check the balance on their app is about 1.9k outstanding balance.

I want this account to be updated and closed with immediate effect. I have already sent through the proof of payment and called it. close your account because I paid what I owed you.