Can’t access my Verizon and none of the reps seem to know what they are doing

So frustrating!!! I had a cell phone with Verizon for 25 years. I added the fios service last week and I went to link the two accounts and it didn’t work on the my Verizon app. Then I called and spent over 2 hours with a rep trying to figure it out. He unregistered my user id on my Verizon app to fix the problem. Can’t seem to access anything. They put in an it ticket and still nothing. I must have spent about 5 hours with Verizon trying to fix this. Anyone know what else I can do.