Pathetic service

I phoned them today to cancel one of my contracts. Could hardly hear the guy and after allt he questions he tell me he cant help me as I did not answer my question correctly. I asked to be transferred to someone who I can hear and he said I must phone back. So the failed question was "How long have you had the contract". I have 3 contracts with cell c for years. Who remembers how long they've had their contract. PLEASE CANCEL MY CONTRACT OR IS THIS THE WAY YOU TRY TO KEEP YOUR CUSTOMERS!