Inability so solve problem

I've been with Easyweb for 1 year now, and totally regret signing a contract. I was on a 5Mbps package, which 'kind of' worked. Then decided to upgrade to the 10Mbps, as on the 5Mbps package, I got an average download speed of approximately 3.2 Mbps. I thought the 10Mbps would be better and faster, boy was I in for a rude awakening. "New" package currently running at 3.13 Mbps and even 2.59 Mbps, at one stage download speed was 0.96 Mbps. I've logged numerous 'helpdesk tickets' as there is no after hours service, and the answer that I get the following day (on all my complaints) is "Upstream had issues on their network". Why pay for something that is not working properly?