Refund

I recently changed a course at this institution, the course i changed to is cheaper than the one i was previously doing, before i changed the course i asked what will happen to the balance left as the account will be overpaid they said i will be refunded. After the institution had approved the changed of course to a cheaper course i was due a refund i fiilled the refund request form and submitted it but told my requrst was denied i asked why they siad because i changed to a cheaper course.

I logged a complain with their department but i haven't been refunded or my complain attended. My argument here is why did the institution approve a course which they clear know is cheaper and they wont refund me after, they also fail to provide me with a turn around time for resolving customer queries.

Please help me get my refund from them. A total of R2240