Open question: I worried myself the net curtain-on-line conference of Internet workshop, and they pressed me, in order to spend money. Why?

I cannot believe, like with difficulty it, over which acting the net was to be learned on of net curtain-on-line at the conference during the seven hours meeting. Afterwards a representative pressed me, in order to spend thousands dollar, if I liked to remain also, what I do. What is wrong with these chaps? I do not understand.