Complaint about Tracker connect for failure to update payment record and instead handing my account to third party

Good morning,I am Isaac Jealous Molobela with the tracker ref number:CLI*** and my account with tracker was in areas of R516.00 and i have fully paid those areas on the 17/04/2020,however i was notified that my account was suspended and handed over to a third party called nimble group and i tried to contact the third party through whatsapp, sending them proof of payment and they kept disconnecting our chat on purpose,i am therefore asking Tracker connect to update on their system that my account was fully paid and proof of payment was also sent to their email address