Worst customer service I’ve ever experienced

We just got xfinity for our home WiFi and our experience with customer service has been absolutely terrible! 

First, the person who came to install the service arrived outside the arrival window we were given so therefore I had no childcare. The service person told me he needed to access our power supply in the basement. I took him down but could not go into the room before I have a toddler. He walked out and said he got it figured out and left. I then went down to the area later and he PULLED INSULATION OUT OF MY WALL and left cords (that he brought) everywhere. It was crazy.

I then called and complained and they sent someone else out to “fix” his mess. They told me I wouldn’t be charged since my experience was so poor ($100 charge). 

I then got an email that my bill was due and saw the $100 charge was not removed. I then chatted with a customer service agent who told me they would process the credit. Two days later, no credit so I chat with someone else. The same thing happens again and at this point I have talked to 3 people who told me I could get a credit and no credit has been given.

 
Today I call someone who tells me I cannot get a credit and the “three other agents lied to me” and told me I was eligible for a credit. I got a little upset and while I was talking, the agent put me on hold. I was then connected with a new person who has no idea I had talked to someone else already. The new person told me she could offer me $57 credit because “that’s all I’m able to do in the system.” I had to put two babies to sleep so I gave up and accepted the $57 credit because I’d been on the phone for an hour. 

Has anyone had this experience? They seem so unorganized and it seems it depends on who you talk to if they’re able to help you.