Command Center sent one letter and is winning their suit. Note how Schadel has already acknowledged that he is hoping for reasonable payment arrangements with them and, more recently, won't even comment on the case. Prometheus at least tried to reason with Schadel, but Schadel had a hissy fit and is now being sued for FRAUD!
I tried to negotiate for a week before suing. Schadel wouldn't call me and would only selectively respond to my emails, so I don't know that I'd call it a negotiation. But I reached out and was (and still am) open to negotiating a settlement to this debt.