Bad service from CellC

Hi guys, on 09/06/2017 I took out a contract with CellC for a Router and 20 gig data day and 20gig data night Data bundle. On 13/04/2018 I received a phone call from Itumeleng Moima from CCD who said he was phoning to offer me a top-up for 40gig day and 40 gig day data and a router. In April this year I went to the local CellC store because I received a message to say that my contract is up for renewal. The lady at the store asked me why I took out another contract for data. She showed me on the system that there was another number and contract on my profile. I told her that someone phoned me to say that it was a top-up and the they had sent me a new router. She asked to see the two sim cards connected to the two routers and I told her I only had one sim card and that I put it in the new router because it didn’t come with a new sim card. She then handed the matter over to the store manager Lehutso Morena who emailed Head office to send us the recording for when the contract was sold to me by Itumeleng Moima and he told me it would take three to five days. The email was sent on the 15th of April and we are still waiting for the recording. CellC’s system shows that I have not used one kilobyte of data on contract number ********** 413 since the contract was sold to me but I have been paying the account every month believing it’s for the new topped up data bundle I have phoned CellC on numerous times since but nobody has been able to help me and every time I am told they would come back to me. This costs me R500 every month since 13/04/2018. Today RAM Couriers arrived at my house with a parcel telling me it’s my sim card from CellC reference number ********** 9-1 from CellC Limited - Upgrades. I have requested CelC on numerous times to cancel all contracts and that I’m not interested to do business with them. I also requested to be paid back the money that I spent for something I never received or used. Please be so kind and assist me with this matter.