Worst Customer service ever

Since RCS has taken over Edcons credit facility, it took a year for my installments to reduce my amount owing. My initial amount owing was R2000 and even though i was paying R600 a month, i was unable to bring the amount owing down. Eventually i did, I've been trying since January of this year to close my account with no joy. I've emailed them numerous times to cancel all my subscriptions so that i can close my account, nothing has been done. Because of this I am paying R150 a month for admin fees and subscriptions even though I have a nil balance on my account. I have been an account holder for the last 18 years and if the interest rates weren't so high, I wouldn't close my account but now its just becoming annoying that no one can cancel the fees on my account so that i can close it. It seems as though edgars has lost their touch and they are just trying to make money.