Dish Network AFNI No response Internet

Dishnetwork employs a company called AFNI to handle collections for their department.  Back around 5 years ago I had Dishnetwork as a cable provider and loved it.  I had to cancel Dishnetwork cause I was leaving out of the country for around 4-6 months.  I was under no contract and advised Dishnetwork that I was cancelling and what I needed to do to to cancel services.  The company sent me a box to return all items to Dish such as the DVR and etc.  I paid a final bill and thought everything was good.  I got back in out of the country and noticed I had received a bill from Dish and that Dish had already sent it to their collection department.  This collection was reported onto my credit file and I have since then disputed the validaty of the account. I don't owe Dish but if they would remove the collection account from my credit file I would be more than happy to pay the amount the company states I owed.  I have been trying to get this account removed and paid for the past 4 years but the only thing I get in response is that the debt has been verified.  If Dishnetwork wants their money so much to assign it to collections then why is collections not willing to collect a payment from me.  My next step is to file a complaint to the Federal Trade Commission as well as seek legal council if this does not resolve anything.  This is just for an amount of $106.