Cell C

My husband finished paying his account in January 2025 but Cell C kept on deducting money,when he reversed the money they say he owes them,but we went to their branch to tell them about the problem and they couldn’t assist him,when they called they said they will investigate until today m,no fees back nothing,and now my husband can’t do anything because Cell C is blocking him everywhere,and some of them are saying he never closed his contract,you are guys are a ****