After over 6 whole months of ridiculously slow speeds, slingshot have finally gotten round to fixing my issue! I can't even remember how many calls and speed issues I have lodged but finally I can use the internet again! The Issues with youtube have gone, Skype now works, torrents run fine, I can use filehosting sites like megaupload again. Every problem with my internet has now been fixed :D
To everyone with slingshot having problems with their internet speed Keep pestering them. There is no reason you should have to deal with a problem like this for this amount of time. I am glad it's fixed now but Taking half a year and even forgetting about my issue... I expected better from slingshot. But putting that behind me it's sure great to have my 16Megabit line speed back :D I was getting speeds of less than 3 megabits and sometimes as low as 0.5 Megabits.