Pathetic service is an understatement!

Appaling service received. Took out 4 funeral policies in June, received my documentation on the 25th June, sent a cancellation mail on the 1st July to cancel. Received a response on the 7th July asking for a password to a document, rep**** immediately, no response received since, yet they were quick to debit my account on the 15th, even though I cancelled within the window period! Phoned today, after holding on for 20minutes, spoke to a man, after numerous excuses, the gentleman could not deal with a frustrated client and put the phone down while I was talking! If you can't handle an irate client, don't work in a call centre! Phoned back to report the consultant, after holding on for 59minutes to speak to a Supervisor, the line cut! Oh and guess what, the contract has still not been cancelled! What should one do to get some service?????