Contracts not cancelled

My husband has several contracts with Vodacom. At the end of last year we identified four contract that we want to cancel as we are not using them anymore. In the middle of January this year, someone from Vodacom phoned my husband informing him that all our contracts are still valid and to renew them Now, my husband does not hear very well over a phone, I normally do all the talking over the phone. I was not available at the time. The agent from Vodacom said if we want to cancel the contracts, we can do so within two weeks. On 26 January 2018, I phoned ********** to cancel the contracts and then had to phone ********** 666. I was informed that I could not do it as they were activated. I explained the situation to Hlengiwe and eventually she said she will see to it that they will be cancelled and gave me the following reference number ********** ********** . The contracts are still not cancelled and we have to pay for contracts that we do not use anymore. If this matter will not be solved, I have no other option as to find legal advice.