Installing services

This has to be the worst experience I have ever had with Comcast, I called on May 5, to transfer services to a new location. The appointment was originally set for June 5, I called back to change the appointment to May 29. That's was a huge mistake.  I called on May 27th yo verify my appointment time to find out it was never  changed but I could do a self install for my internet but home security had to have a tech out. I tried the home installation and it didn't work, so we had to have the tech install both. The appointment was change ti June 6 because I  couldn't take off work again. On the 6th, the tech came out and wasn't able to complete the install, so an appointment was scheduled for the next weekend on 13th. That tech came out and wasn't given a contract to complete the install,  so another appointment had to be scheduled.  The tech contacted me as promised on 17, stated he had the contract all i had to do was schedule an appointment.  I called and was told no one could come out until 26, 27, or July 1st. The call was escalated to retention  i was given sn appointment for June 20. The tech came out connected the control panel, stated he didn't have a contract.  I discovered the key pad wasn't installed,  contacted Comcast to discover my services has been disconnected.  I explained the situation to several representative to continue to be blind transfer. To find out my account was disconnected because someone else had a previous balance at that location.  

I have spoken to so many people and keep getting different answers. 

I am so [Edited: "Language"] and I have to have my services