Money for Nothing

I have been with CellC since 2006. Year In and year out I have renewed my contracts. at one stage I had 5 contracts with them. This was until COVID. Since then I have had debt problems, and have not been able to pay all my accounts, hence they fell into arrears. Two years ago I entered into a contract with a laptop over three years. No-one said that that for the first time in my dealings with them that they would increase my premiums mid -contract. I have had the sim-card deactivated because the modem I had it in has gone missing. Now I am paying extra for nothing. My number with them is no longer working.