1st customer service issue was 12 years ago or so. I originally setup my internet service through Earthlink about 5 years prior to this incident. Little did I know, Earthlink just ran their service through Comcast. Fast forward 5 years or so after I originally setup my internet and Earthlink transferred all accounts to Comcast. In the process of consolidating data on Comcast's end, the main email address tied to my internet account was overwritten (it was an email through earthlink.net or .com or whatever it ended in) and replaced with a comcast email. This flagged my account as being inactive and my internet service stopped working one afternoon. I figure maybe it's an outage, no big deal. Next day, internet still not working. I do all the TSing on my end, no internet. I call comcast, they say internet is not down in the area and want me to go through all the bullshit troubleshooting I've already done. I tell them I did all that and nothing is working, I asked if they could reprovision the modem and struggled getting some one to help, all testing on their end and they couldn't connect to the modem. They setup a tech to visit the next day. Tech shows up, brings a new modem, makes sure everything is connected and no matter what he does he cannot get the modem to connect to the internet. Several hours of doing stuff, no luck. He gave up and left.
Day 3 with no internet. Tech returns, a second new modem. He hooks it up, but no internet. He's on the phone with customer service for a few hours and they can't get it figured out. They continue to look into things on their end.
Day 4 with no internet. I get a call from Comcast, they said they figured out the problem was on their end with the system merge and having something to do with the wrong email linked to the account and they're unable to delete the wrong email and input the correct one. They were working on an internal resolution and would let me know when it's resolved.
Day 5 with no internet. I get a call late in the afternoon from the tech that's been by a couple of times already. He's in the area with a 3rd modem and says he has to hookup this modem and they should have internal issues resolved. Tech shows up, swaps modems and in about 15 minutes the internet is back up.
I requested a refund for days I was without internet due to it being their fault, they said no (ass hat wearing bitches).
2nd customer service issue was about 5 years later. I got a letter in the mail saying I wasn't paying modem rental. No back charges will be applied to my account for the past "missed" rental months, but at the start of the next billing period I would see an extra $10 a month charge for renting their modem.
Screw that. I went and purchased my own modem. I contacted customer service, told them I wanted to get my own personal modem setup and to return the rental. About 20 minutes later I have my modem setup. The next day I drive 15 miles out of the way to return the rental modem to a physical Comcast/Xfinity location. I return it. I get a signed receipt of it being returned. A month later I get my bill and I'm being charged $10 for rental.
For the love of.....I call customer service, get the run around. Let them know I still have the paperwork about returning the rental modem. I send them a copy. Issue is resolved.
(okay, so this one wasn't that bad, just annoying)
3rd customer service issue was after disputing the rental fee, my next billing period I see I'm being charged $25 more than I was before. I reach out to customer service and the guy on the phone tells me that I signed up for a "new contract". I told him I did no such thing. I had to argue with the guy for an hour to get the charges reverted. I couldn't figure it out, but for some dumb ass reason they magically put me on some TV+internet plan because it would "save me money". I ended up getting some cable box in the mail, that I had to drive to the physical store location and return it. Once I returned it, I had to argue with customer service on the phone for another hour about the bullshit contract they put me on without my permission. I got the contract removed because they couldn't find any signature or e-signature from me agreeing to a new contract. I eventually got back to the normal, internet only plan and I was back to paying just my $50 a month.
As you can see, I don't want to deal with their piss poor customer service anymore. I'd hate to sign up for gigabit service, get some run around and end up with them trying to give me the shaft. No thank you.
