Vodacom - bad service from the start

I decided to port my number and get a new contract with Vodacom. This was an absolute nightmare and i was given a new Vodacom number. eventually they managed to port my number and cancel the NEW number i never used.. or so i thought.. I was JUST debited for a large amount of money and when i called to question it i was told it was for 2 numbers.. on which was supposed to be cancelled by them. they apologised and asked me to call after sales in 7 days with my reference and ID number and that it would take another 7-14 days to get my refund.. why does everything have to be so complicated? I am so over all service providers.. they have all the fancy applications and systems i place but still fail to deliver. I want my refund ASAP as it was Vodacoms error...