Incompetency from Mpowa

I called mpowa finance on thje number provided on the website several times without any luck. The machine will answer but you never ever speak to a consultant. I also sent them emails requesting for the paid up letter without any luck as my name is appearing in the credit report that i have 23 loans with them that are not paid but when i go to their website it shows that the accounts are paid up. I'm also receiving calls from NBD requesting for the payment that i already made. I emailed them the proof of payment but no one is responding.

i want them to send me a paid up letter through my email and remove my name on the credit bereau.