Customer service

I have had absolutely the worst experience I have ever had with Xfinity three months ago, my Internet, what I call went out because it was less than 25 MB and I couldn’t use it for 5 to 7 days because it was so slow and they said they would resolve it and then miraculously it worked before a tech arrived saving me being charged and then about three weeks ago it went out for almost 10 days and then they somehow said it was the modem and they would replace the modem and never sent me another one, and then it miraculously started working again right before the tech arrived. The second time the tech, of course never showed up and no modem was brought to me    I decided to go to the Xfinity store and talk to them about it and they claimed that I had the wrong modem for the speed I was using and they gave me a new modem which works great both her and the lady on the phone that helped me set it up said that yes this is the modem and the other one was wrong and they would submit a request for me to get a credit because of the bad experience. I know I’ve only been getting half the speed I’m supposed to this whole time. What can we do about that and they said they would look into it

I get a call from some executives saying they were an executive for Comcast and wanted to hear what was going on and determine whether I was getting a credit or not when I told him using the words that my Internet has been pretty much out and I haven’t been able to use it I found it. It was unacceptable and that I felt I should get some type of credit. He started calling me out and telling me that I was not telling the truth that it was not out because they didn’t show an outage, and even if it only had a couple of me it meant the Internet was still in service and that I was not telling the truth about it being out, and therefore I did not deserve a credit. He was rude condescending and downright doesn’t seem to care about true customer service and I hate to say it, but Xfinity truly has lost their customer service aspects and don’t know how to take care of people anymore