what are my rights?

hi, so a couple of weeks ago I signed up to Stonebridge college online to do a course in child physcology. I optioned to pay the 9.99 deposit and then pay 47.99 evrry mo9nths for 6 months as I couldn't afford the full lot to come out all at once. anyway they ended up taking a deposit and the full lump some from my bank. I contacted them to change this and they were very rude with me on the phone with one owmen even laughing at me about the fact I couldn't afford to pay the full 300 at once for the course. I decided after speaking to a horrible rude customer service team to cancel my course. I sent a hand written letter to cancel the course and explaining why. I tracked the letter 1st class and I no that they have the letter. but nobody is getting back to me. what happens if they don't read the letter until 7 days after purchasing this? can I still get my money back as they took the money with no permission to do so.

also if I contact my bank on Monday and explaiun to them what happened can they get me my money back?
I have enmailed the company a lot of times and nobodys getting back to me and talking to the customer service on the phone is just a joke.

I would also strongly advise anybody not to use Stonebridge college online as there not too legit.

thank you!! 10 points to best answer