RICHFIELDS FALSE BILLING WHAT A NIGHTMARE!

I registered for the Richfields Bsc IT Programe. I took the first semester exams and did not register for second semester. My moodle subsequently became empty and I have no access to my results or modules. But now they are billing me as if I am an ongoing programme and sending me messages to pay. I have asked for an explanation and received no answer they keep adding fees when am not even studying I AM WARNING ALL WHO WANT TO REGISTER TO PLEASE RETHINK THIS. THE AMOUNT OF FRUSTRATION AND STRESS WILL NOT BE WORTH YOUR WHILE.