Bullying tactics and BAD administration.

We have been battling with my Dad's Cell C account since last year. He's got 2 accounts - 1 for his mobile and 1 for Data. On the 11th of Jan 24 we sent a letter of cancellation for the Data contract, as this contract came to an end. Cell C needs to check their statement as it is stated in back in white that the contract has come to an end. For the month of Feb we paid the full account. Come March we only paid for his mobile contract. Cell C then suspended the all contracts. BUT they keep sending the account. For the month of April my dad only paid the Mobile account in full. Suspension was not lifted, he does not have any airtime, he does not have any data on his mobile. Therefore for the month of May he only paid for the handset plus VAT. This is pure bulling of an 77 year old man. There is absolutely NO respect. He has tried to cancel the Data contract via phone, via going to the Cell C store at Springs Mall and we have sent a 21 days cancellation letter to Cell C. But NO luck. How can he pay for his mobile contract in full if Cell C does not adhere to the contract that he signed? Why must he pay for data and airtime and smsse if Cell C blocked / suspended it???? This is pure bullying and very bad administration form Cell C. We refuse to pay for a service that he does not receive. He is adhering to paying for the handset plus VAT. Can a senior manager that actually knows what is happening on contracts contact us, because Cell C, no wonder people are moving their contracts to other suppliers. Cell C, you are really bad.