plain green loan and western sky

I just received an e mail back from Plain Green loans telling me that they have accepted my offer to pay the remaining balance on my current loan, they have indicated on their e mail an address to send in payments. This is at least out of the ways. for Western Sky, this is my situation. Took loan back a year ago for $1000.00, they added an extra fee of $500.00, have been paying cash call $198.19 per month. i learned when I called cash call last month that my account was now with Delbert, and that was through their automated system. i went into the Delbert site, and there was all my history with all payments that I was making. i closed my bank account last month, and of course, they did not get my payment. i have not heard from any one at Delbert, or cash call, either by e mail or call. What shall I do? Shall I send delbert a c and d E mail before they contact me of just wait until they do? Please Help
Thanks.