Callback request.

I received an email advising me that I can qualify for a discount of up to 40% should I settle my wonga loan that was handed over to HTN. I have sent a response to the collections email requesting a call back to discuss the discount and settle my account, however no one has contacted me or even acknowledged the receipt of my email. I then called through to the call centre 12/09/2017 at 17h45 and i was advised by the agent that I spoke that she cannot assist me as the team leaders who authorises the discounts have gone home, I then asked her to arrange a callback and she told that team managers do not do callbacks. I found that absolutely ridiculous as i also work at a call centre environment and i know team managers do call customers back should they request. I still want to settle my account but I cannot keep on contacting you people for this. I WANT SOMEONE TO CALL ME BACK BEFORE THIS DISCOUNT OFFER EXPIRES!!!