Debt Negotiation Agency question.?

I’ve proposed operative with them most 6 month ago, though not long past we disbelief my decision. we desire to ask someone, who already worked with some debt negotiators, if they had a same problems, as mine.
So
1. apiece Collection group (CA), who contacted me pronounced they never intend energy of profession time – my group pronounced they sent em during a beginning.. who is lying?
2. My balances increase during most 20%, a lowercase of them modify 100% in this 6 month. Is there were a approach to kibosh it during a beginning, so we had to compensate only a principal amount, or it is suspect to be similar to that?
3. Most of a CA pronounced they never got contacted behind from my negotiators, thought, they titled them – negotiators all handle similar to that?