Cannot get Xfinity to drop and move a line

How can I get Xfinity to move their line?

My family has a cottage in Michigan. We are almost finished with an expansion. On this property is a telephone pull we own. It was used for security light. Currently, Xfinity is using it to support a cable
line to one of their customers. From the previous pole to the nearest pole of their customer, its like running across the amount of ground equivalent to like 4-5 subdivision homes. Without the our pole
there would be too much slack. Well when we started our project, we had to have them drop the line, to remove a large tree. That took weeks to get the line dropped. But when they did it, Xfinity was told 
that the pole was coming out. 1. It was sitting right next to new septic area. And 2. the pole has some internal rot. So it has to go. I think this was around December.

Jump forward to March. The septic is going in. A family member managed to get a hold of someone at Xfinity. Which was remarkable because without an account, it is hard to get a human. She talked to the person
and was told, it would be about 10 days and it would be done. 16 days later, she called me and told me it was now my problem to deal with Xfinity. 

April 8th, I could not get ahold of person so ended up doing a Chat. The representive said they could not do anything without their customer making the request. Even after reminding them, it was our pole that
 needed to come done, they still wanted the request from their customer. So I called the customer. She said no problem and after having the same difficulty getting a human, contacted Xfinity, a got us a work 
 order. And was told it would be done by that Sunday or Monday.
 
I heard back from family, cable was still up. This is now the week of April 21st. It might be week of 14th. I forgot to write the date down. So I start pressing button options on Customer Support line. Manage 
to get someone. He looked up the work order, supposedly instead of it being assigned to a Senior Technician it was assigned to just a Technician. Why it was not then transferred, I don't know. But he said he 
assigned it to the Seniors and up it to a Priority. And it would be taken care of no later than the next Monday.

Here we are May 5th and still not taken care of. I am hoping by sharing this publicly, I can get this taken care of.