Upgrade information terribly wrong and cost me over $400 for $100 piece of equipment

by far one of the worst customer service experience I have ever had to deal with in my life

I recently added a Xfi pod to my account I decided to check out my mobile app after getting it set up I noticed that I have been charged $16 a month for the last 2 1/2 years for a piece of equipment that I no longer use. contact customer service and tried to explain to them that when I upgraded my modem, I was never told to return the old one, and that it was mine Because I had leased it for so long, so long story short, I was on with your customer service texting service I talked with or text with seven different customer service representatives before the last one decided to shut down the conversation before anything, was resolved and every time with a new rep they had no clue what was going on and had to ask me

I have a screen recording of the hour and 20 minutes worth of text conversations 

And my concern was never addressed or even acknowledged at one point one of your employees wanted to do assist me in lowering my bill

I mean, give me a break for that much time spent on the phone texting back-and-forth not one of them offered or talked about helping me with the device that was never returned and all the other forums I have read through people stated that they were given a fee of $110-$115 but here I 2 1/2+ years of paying $16 a month

is there something that Xfinity is aware that they are practicing on their customers of 18 years

The only thing that was offered to me was $100 account credit. Wow that’s justifiable considering I was spending $150 a month just for your Internet and the part that really ticked me off I’m in the middle of responding to a text message and I get shut down. I have been trying to upload the screen recording I took with no luck by the rudestcustomer service I have ever dealt with in my entire life