Adt Protectron - Out of Business

I recently terminated the 3 year contract that I had with Protectron and I agreed to pay out the 3 months that I had remaining on the contract as a lump sum. Instead of taking the amount by direct withdrawal or telling me that I had to send a check, they sent my information to a collection agency! I've never been late on a payment with them before. They should have told me to pay in a specific manner when I was on the phone with them. I paid the collection agency right away but the amount I paid was more expensive because I likely had to pay for the collection agency fees as well. This was a horrible experience.