Cell-C pathetic service

I had a contract with Cell C acc nr *** for many years and ported my phone no *** over to Vodacom early 2021, because Cell-C was not able to upgrade my contract or provide me with a new Iphone for the past 3 years at the time. Although my name was on their waiting list at various of their branches, I waited for 3 years for an upgrade and never received any new device. Vodacom offered me a new device and I decided to port out to them in early 2021. The same day I walked over to Cell-C which was just opposite Vodacom in N1 City to cancel my contract with them. The Cell-C staff member told me that she could see on her system that my number was busy porting out and that I should only pay a R738 to finalise the cancelation. I paid the money the same time and I walked back to Vodacom. Since that time I received Vodacom statements, and I pay them. It came under my attention that Cell-C handed me over to credit bureau for non payment of R11 000 for a contract that I don't even have with them anymore. No data or talk minutes are coming through my phone from them, only from Vodacom as I pay Vodacom every month. Please update your systems Cell- C and remove my name from credit bureau as it affects my credit score negatively. Thank you. M Jacobs