Frustrated Customer!!

I upgraded my WIFI package with Vumatel through my ISP Telkom on the 11/08 and the line speed was adjusted on the 12/8 according to my ISP. The line speed did not change. After calling Telkom many times, each time, according to Telkom, Vumatel would close all my ref numbers as resolved. I then logged a complaint on Hello Peter against Vumatel. I have just received a phone call from Vumatel who have informed me that all my tickets logged through Telkom, my ISP were returned back as they did not have sufficient information on them!!!! I mean really, please explain what information was inputted?? Surely it was mentioned that I had a speed issue and that all attempts to unplug and switch off everything and run speed test was done?? But no, Vumatel says none of that information was provided!! So once again, the customer is left stranded with no help at all but my monthly debit order goes off like clockwork!! Is the staff not trained properly?? The guy that assisted me gave me a number to call Vumatel myself, ***. I asked if this number would work and he said yes....guess what, this number does not exist anymore as Vumatel issues must be logged via your ISP. How does your staff member not know that!! So do you understand my frustration??? These are the ref numbers I received, ISP-852872, ISP-858472, ISP-865984 and ISP-872031 all of which were closed by Vumatel due to insufficient information leaving me as the customer extremely annoyed, angry and frustrated. Who am I to believe?? I just want my issue resolved or I am cancelling my contract.