Debtbusters agent: "I have no available manager and no manager's telephone number"

I was a client with Debtbusters from roughly June 2015 to December 2016. I was retrenched in June 2016 and could no longer keep up with the monthly payments. I eventually found word almost a year later but my salary was about 60% of what it was when I was first placed under debt review, so, my last avenue was sequestration, as Debtbusters refused to assist me in getting my monthly payments reduced (as I was earning +/-60% of my salary). My only other option was sequestration. Believe me I tried!!! I was sequestrated in 2017 and have since been rehabilitated. In updating my rehabilitation with the credit bureaus it has come up as a banner that I am under Debt Review. I called customer service and I think I spoke to Tsheko Mantazi, but I could not clearly hear the agent's name. My attorney that is handling my sequestration and the update of my records requires a letter from Debtbusters confirming that I was a client from +/-June 2015 to +/-December 2016, in order to lodge a complaint with the NCR and to get the banner of "Debt Review" removed from my credit profile. I explained the situation to the agent and he repeatedly told me that he cannot supply me with such a letter as I need to prove to Debtbusters that I was sequestrated and rehabilitated. It is a question of what came first, the chicken or the egg. I need the letter for m attorney to get my name cleared but in order to get the letter I need to clear my name. I asked the agent for his manager and he said "the manager is not available" and then I asked for the contact details for a manager and he said "there are no contact details". He refused to provide me with any details for any manager. My call was at approx 14:20 today 22/04/2021. The proof is in the recording that is supposedly done for quality purposes. The reason I need the letter for my attorney is because she was paid to do this service (to get my record cleared), and I would rather work with her quick response than sending documents to Debtbusters and "hoping for the best". I mean if this is the response I get - how can I even count on a reasonable response time in getting my profile cleared with the NCR??? I would still send my documents to Debtbusters but I need the letter to say I am no longer under debt review and no longer a client. PLEASE HELP!!!! I went through 4 years of hell after being sequestrated and all I want to do is get on with my life, PLEASE :(