Do not make payment to them they are ******

So they agent called my husband and told him he qualifies for a discount for his debt if he can settle the account and they will send paid up letter after 21 days they said. He made the payment and sent proof of payment to Lebogang Mokotong, they acknowledged the payment but now they are not sending the paid up letter its been 2 months now. They have been confirming his e-mail address a number of times and not sending. Now the company they are collecting for still has the debt and no communication from the collectors. Had we know we were going to pay the company directly not these ******. Now we stuck with debt we made payment for. Lebogang Mokotong failed to send the letter now Gugulethu promised to send. Will this ever end?