no response, no assistance... I'm not paying

I've got a 4mb line with 20gb cap. I went into Telkom clearwater to make a payment for my adsl and downgrade to 2mb uncapped as I was not even getting a line speed close to 4mb... To date, my line speed does not even get close to 0.25mb... What are you guys doing? Because of this I have to buy data for my cell phone and use it as a wifi hotspot because your service is Kaak!!! Please can someone sort this out ASAP! I've been trying to call Ur call centre, but can't hold on for 1hr30mins... Employ more people! Geez!! I've gone into your clearwater mall store about 5 times and still no happiness? This is poor service!! U guys suck!!! And I've only been with u for 4 months? More hassle than happiness! Can someone who knows what they doing please contact me ASAP!!! I will cancel this and sell your router to cover my costs... Also because of Ur weak service who can I bill for my loss of income and cost of data????