What should I expect?

I'm a brand new customer, I just got my internet today. Actually, I signed up last week for internet and home security and was told that techs for both services would arrive between 8-10 am Tuesday, December 8. No one showed up. When I called customer service, they realized that when I originally ordered service, a "wrong code" was put in by the rep. The women I spoke with was very nice and accommodating. She set up an appointment for today, Wednesday 12/9. The tech came but found some problems with the existing cable. He said the home security tech would not be able to do anything until I had internet. Luckily he was able to fix everything with the help from co workers. Afterwords, I waited several hours and no one from home security showed up. I called customer service again, the were very nice and apologetic. They said a new install appointment was not set up and offered a new appointment time, December 17. Really???  You guys messed up and had communication issues between teams, and now I have to wait 8 days without a security system for my home. Is this how it's going to be with Xfinity? Do they not make amends or attempt to rectify situations that they caused? Should I get out now?