Congested exchanged

Since 11 Feb 2015 my speeds on my 4 mbps line has been pathetic (1,2 mbps) and getting ridiculously worse.<br> Many faults were logged - and were subsequently closed even after letting Telkom know the problem has not been resolved.<br> The latest fault has been open since 24 Feb 2015 (17ATK240215 ).<br> There is apparently no ETR for repairs and nothing more has been done.<br> This is what Critical Care at Afrihost received from Telkom regarding the fault:<br> \Telkom confirmed yesterday that your line is linked to a Network Fault at the exchange.<br> This means there is congestion & all users at that exchange will be affected at period of congestion."<br> And when asked if my line could be moved to another exchange"