Internet speed sucks

We have a 4mb uncapped adsl line with Telkom as service provider. Despite having to call the call centre on a daily basis to hard reboot our rooter we are still stuck with a download speed of 0.25mb. We have upgraded our line on Thursday, 21 January 2016 to a 10mb uncapped, in the hope that this might improve our service. Guess what? Still slow internet speed. We have reported this line issue on numerous occasions to Telkom and no assistance has been received.