Wiring Issue

I recently moved from Georgia to Alabama for work. As you are aware, Internet connectivity for an 100% teleworking employee is more than an convenience it is a necessity. In Georgia, I was a WOW customer and had a marvelous experiences. Naturally, when I moved to Alabama, I wanted to continue my business relationship with WOW. Unfortunately, the condominium association where I am renting my condo has contract with xFinity. Initially, my experience with xFinity customer service was fantastic. Consistently, every representative I've spoken with is pleasant and helpful. This does not negate the fact that I have had the same issue for what is approaching my second month. Having a polite customer service representative and not having my issue fixed is like someone saying, "please, look away," before they shoot me in the face. I know that's a graphic illustration, but the frustration I have experienced has reached that level. I had a problem with intermittent Internet connectively that got progressively worse over a few months. Initially a technician came out and replaced the drop hardware. He tested and indicated it was fixed. It worked will for a few days, but was back to spotty connectivity. I called again. The agent told me it is most likely my equipment because I had a higher tiered speed, I might want to try upgrading my modem and router. I did both to the tune of $500. This did not work. I called again.  A technician came out and said all of my wiring from condominium was old and bad. It would be difficult to trace the line and find out where the issue was since the wiring was so old. He said the solution was adding a new drop and routing straight to the Comcast box that serviced the condo. Great. I now have amazingly fast Internet. But when he did the new dropped, he drilled a hole in the side condo,  dropped the wire on the outside and the wiring was never buried. My HOA contacted me and informed me that the way the drop was installed violated my HOA agreement.  I needed to have it removed. I contacted xFinity again and was told a 3rd party contractor must come and rewire my condominium. The technician scheduled the appointment on the spot. The 3rd party contractor was supposed to come the next day between 8 am and 10 am. So I waited. And waited. And waited. I called at around 1 pm and was informed the contractor was delayed. So I waited and waited.  I called at around 4 pm and they said the contractor was very behind and he would be there no later than 6 pm.  So I waited. And waited. And waited. I called at 9 pm and they said the ticket was closed and the contractor fixed the problem. I walked around to the back of my condominium and saw that things were just as they were. I told the agent no one came to my house and no one called me. He said, he was only reading what the report said. I reiterated, I still had the issue and no one came to my house. He then told me, what seems to be the standard line for all agents -- I will elevate your issue and get someone out there. It is now a month later, multiple calls, chats, refunds and still no one has come to my house to rewire and fix the issue. The 3rd Party contractor seems to operate independently of xFinity and yet, xFinity as the prime contractor is ultimately responsible for ensuring that a customer issue is resolved. I am at my wits end because every day I am in violation of the HOA, is a violation of my rental agreement and grounds for eviction. No one seems to be concerned about the real world implications of this consistent lack of service and the utter disrespect to a paying customer. Could you please help me?