VODACOM JUST LIES

I took out a contract in 2018 in SEP 2020 Vodacom added insurance on a y3 two months before the contract ended , when i went in they said they willescalte it and have it sorted , at the same time i had a data contract ,to date they didi not activate it as they sent me the wronge router, they were to collect it amd deliver the correct 1. Nothing happened.I PAID FOR A YEAR, 199 X12. NOW they hand me over , for the cell and cance the data saying they cancelled it with arrears, but it was not activated for use, THAY CAN SEE THAT, HOW do i get VODACOM TO LISTERN AND UNDERSAND. The call centers are off no use. PLEASE HELP