Need help with account in writing

I have switched from Sattelite to DIrect Stream (which has been great :) )  however I continued to get billed on both, I have stream on auto pay so no issue there, my question is, I did call, and told them I had already switched, I received a follow up email from Direct, saying they got my request, and no need to return equipment, to recycle it and there is even a barcode on the email, fast forward to this week , still been charged and now its up to like 400 plus dollars and that I will be charged for equpment- what?! Luckily I haven't recycled like they said but I owe my last month I believe but not 3 months, I would like to email and attach the documents I received from Direct saying they got my message and no problem and no need to return equipment as well as adjust my balance down to 1 month, need to have it all in writing since I am getting mixed messages. Any help would be greatly appreciated. Thank you