Unhappy vodacom customer

I have issues with vodacom every now and then.. And because one can only sort things out via telephone, it only stays there.. Firstly I had data that disappeared rapidly.. They top me up with a 3 or 5gig data but the problem never really get solved.. Secondly.. I had a much better deal from Telkom and informed vodacom about my decision to change network providers.. They have put together a nice deal that I could not refuse and promised I will get my handset within 4 working days.. It's over two weeks now.. When I phoned again, some other manager told me he apologize deeply and assure he will sort things out.. Never did! And now I constantly phone vodacom every day, and either I can't get through, or the people can't put together that deal for me.. This is completely unacceptable for me as a client of Vodacom all my life, and I will not hesitate to cancel my contract as if expires in March and will definitely not recommend vodacom to anyone I come across