Greig,
I spoke to a guy the last time about your problem, i also dropped you a PM if i mind right, he said that he will come and get rig of them for you for i think it was £60 at the time, 3 visits if i mind right, the money you are spending on different things dosent seem to be helping mate, if you want i can speak to him once again and can take it from there if you wish.