Cancel xfinity Internet service

I have been trying to cancel internet service since the day I received the equipment but no one ever answers the phone, no human actually, it's always a bot automated system and my questions to speak to a person the bot keeps asking me what do I need help with after continuously saying I want to speak with an agent or even when I click on one of the questions that are already there for me to ask she says the same thing how can I help you. I received the equipment from Xfinity and have not connected it and have not activated it. 

I also want to say that i received a dirty router that has been used. 
I was charged a $25 fee with the sales department on the day that i called about getting Internet service, I paid that amount with sales department. 
Today i  received another charge for $31.97 and I’m expected to pay for my plan on February 2 for $50. I don’t know where this $31.97 came from but I haven’t ordered anything. I haven’t even activated the router and  haven’t gone through the setup either.. 

I want a refund of $25 and to cancel the service that I have not even activated.

I want to remind you that Xfinity stated that there is a money back guarantee and no contracts. 
Please cancel internet as soon as you read this, don’t wait. I will send the equipment back as soon as Xfinity has been canceled.