TELKOM SELL 10MB ADSL BUT PROVIDES 0,5MB SERVICE

We are situated in Crystal Park Benoni and had an ADSL line installed a few years back which was a 4 MB line. Having moved from DSTV to Netflix and Showmax we used the ADSL line for this purpose as well as the normal emails and internet downloads. From the onset we had speed problems with the line and logged several faults with Telkom but never had speed above 1.5Mb. Telkom contacted us and recommended we upgrade to a 10Mb line which we thought to be good and at least get some faster speed. The speed went from bad to worse with a speed of between 1,5Mb down to 0,2Mb after several faults logged and a complaint on this platform a lady technician visited us spent almost the whole day here and at last we were getting 9.5MB on the 10 Mb line. Our joy lasted exactly 3 days and we went back to where we were before but now we cannot even log into Google home page and get page not found or a timeout error. I even replaced our ADSL router to try overcome the problem. Once again several faults have been logged and the technicians tell us that it is conjestion causing the problem and Telkom do not want to upgrade the exchange as it is deemed to be shut down. I AM PAYING FOR A 10MB LINE AND THE CONJESTION ETC IS TELKOM'S PROBLEM NOT MINE I THEREFORE WANT A USABLE 10 MB LINE WHAT I PAY FOR EVERY MONTH.