Incorrect charges

I went to Clearwater Vodacom store on the 01.12.2025, with hope to settle my outstanding or arrears amount on my cellphone contract, to my surprise, the amount was a lot. only to find out that the home internet I complained about 3 months ago is still being charged on the statement, that line hasnt been used since April, when i complained a few months ago, a credit was done for a month however they charged the following month. i only paid R2000, can I ask that this gets corrected so I can be able to settle my account and also get a debit order loaded for future payments please.