Bad Service

I have been trying to contact Vodacom Speed Points Division since last year, wanting to get people to get their Speed Points to no joy. I have called Vodacom and Xlink manier times with no success in getting someone I can work with. I do not know if their chosen service provider Xlink is inefficient or does not care about my request/enquiry. I find it very unprofessional to have no one interested in reverting back to me Who can help me?