Very unhappy

I Enrolled for a post graduate course and made a payment of a substantial amount to the account, After receiving the time table I noticed it would not suite someone that is self employed and in my profession so I cancelled the course before it was scheduled to start. I was sent pillar to post to obtain paperwork as proof of payment that they could not find to allocate to my account (This was requested a few times and had to be resent on a few occasions) and after that was sorted I was promised a refund and the person we are dealing with said they have a period of 2 weeks to wait for the monies to be processed and paid back to my account, Today has been 2 weeks and when I sent an email to follow up I was told to wait another 2 weeks for the refund to be processed, Really unhappy with the service .