Hi there, thanks for your patience and as mentioned earlier I was going to get back to you at the earliest opportunity, which is now.
Under law once you have signed the contract you cannot terminate it without the consent of the other party, or if there was a cancellation clause in it. Whilst your circumstances may have changed as you have described, legally these would not be sufficient to allow you to cancel the contract without any problems.
If they are refusing to let you cancel and you have to pay them, what you can do is consider not paying them anything, or sending them part payment only. They cannot force you to pay them at this stage and the only thing they can do is threaten you for the money owed. However, if they wanted to force you then they must take you to court and win, then enforce the court judgment against you. There is however no guarantee that they will ever go that far. Many companies will make threatening remarks and even instruct debt collectors, but none of these options can force you to pay. So they will actually have to make a court claim against you and win before they can force you to pay anything. This option does have its risks though as there is of course a chance that they may make the claim, but if you wanted to take the risk this is what you can consider doing now.
The alternative, as mentioned, is to send them payment for part of the fees and state that this is made in full and final settlement for the course costs. If they accept the payment, they will then be prevented from taking this further against you.
I trust this has answered your query. Please take a second to leave a positive rating by selecting 3, 4 or 5 stars above - this is an important part of our process and recognises the time I have spent assisting you. If you still need me to clarify anything else, please reply on here and I will assist as best as I can. Thank you