FORCED TO PAY FOR MODULES I DIDN'T DO

I am very disappointed and angry and I regret ever registering with Boston. This is a very cruel institution to register with.I registered for the first time in 2014 and have taken transfers as I have been moving cities due to work. so lately I registered for my remaining courses in Arcadia in 2018. I could not afford my fees as I thought i would and as a result I was blocked off TMS and could no longer study the rest of the subjects I register for(because I was blocked off the system). Now I have the Boston staff busy calling me to settle my account and threatening to blacklist me, whereas they blocked me off cos I couldn't pay. If I didn't study further with them, why should I continue to pay for something I didn't do, I didn't even get books for this subjects(cos they blocked me from their system) but I have to pay for them an amount of close to 20 000. Okay now I went to finance department and asked to make an arrangement to pay off, as long as they allow me to continue, but I am told with an attitude that my time has expired so I cant be allowed to study further, BUT I STILL HAVE TO PAY. How on earth is that possible? I would understand if I attended these modules and wrote them and failed them, I would understand that I have to pay. BUT I NEVER ATTENDED THESE COURSES OR WROTE THEM COS THEY BLOCKED ME COS I DIDN'T PAY. It was really my wish that I could complete my studies with Boston and get my qualification, but circumstances made it difficult because I really really didn't have money. Now I am left with no qualification and a huge debt for subjects that I never even attended and also a broken heart. Boston is cruel and I wish I never registered.