OVER CHARGED AND STILL NOT FINISHED!!!

I have been a loyal customer for a very long time! Paid timeously. I borrowed an amount of 4094.01. I, however, left work and could not repay on time and made arrangements to pay. After many back and forth calls to wonga and collection agencies I made payment of close to R2000.00. I then was advised my account was handed over to LANICA-WHO THE MOST ********* DEBT COLLECTORS EVER! I have since paid R4000.00 and they refuse to give me a settlement. Every time I request I do not receive a response. When I call in they don't want to provide any information over the phone. I have not indebted myself in any to LANICIA why should I be paying these outrageous fees? It's like I'm paying and paying and it's not ending! WONGA is this how you conduct business? When I log into Wonga its states I owe R987.80, yet the provided me with a letter saying I owe R2000??? CAN WONGA EXPLAIN THIS NONSENSICAL FEES. If I do not get any response I will take this to the credit ombudsman as this is a detriment to my consumer right! Never again will I refer or use Wonga!