Failing to communicate with a customer while the customer is always communicating with you

Good day i am complaining about Auto guard SA after i joined them they send me forms to fill for debit order while the first one they debited with out it they didn't get back to me i have been calling and emailing them. Until may 5th 2020 where thember send an apology email. I then communicated with them that the car says that it must go for oil change I gave the KM and Mr silva sad to me that OK when it is left with 500KM i must call. I send an email on the 31 of July 2020 no reply I called that's when I had an sms coming while on the phone being told there is an outstanding balance they even puted the one of this month i copy the sms from FNB to show that it did went off yesterday i ask why only when i claim that you tell me that i am owing the previous one you told me I mad a payment and the April is their mistake now they want me to pay twise this month. I emailed Mr silva he didn't get back to me i have been calling still no help and he is on lunch tried his manager also he is been in the meeting from the morning. All i want now is to get my money that i have paid them will take the car my self for a service. You can email me on *** and call me on ***.

I thank you