Unhappy with Cell C SA

I took a contract for a home router at Cell C last year when they change their towers early this year my router got affected and it was not working I called the call centre inform them about what is happening I was sent from pillar to post no one was willing to help . I eventually took back the router to the cell c store in Maponya mall on the 15/03/2021 where I was told that they are sending to repairs I should wait for 21 working days, I waited 21 working days passed I don't receive any call , decide to go back on the 04/05/2021 and I was that those home routers are discontinued if I need another home router I must top up with R2000.00 so I can get another router, how does one pay for another router but the contract is new and still active. I phoned Cell C Call centre this morning, still taken from pillar to post and I spoke to a guy who said he is the manager of repairs department he will send an email to Cell C Maponya mall and CC the store manager on the email and he will phone me back about the results on the solution but they still haven't got back to me.