Poor Internet speeds for 2 months now

About 2 months ago my internet line dropped from a 4MB line to a 2MB line without any communication from Telkom. I thought I'd give Telkom technicians a chance to sort it out, perhaps the problem was a result of them working on the line. After logging the fault at the beginning of December, and having a technician come around, the problem has not been fixed. This is not the first time this year that this has happened as I've easily had around 5-6 Telkom technicians this year have a look at my line at the exchange, fix something, only for it to happen a few months later again. This is getting extremely frustrating and I just wish the issue would resolve once and for all.<br> <br> Reference number is 386CWK301115