Terrible Service and massive drop in speed after they get you onto 5G

I have now lost count at the number of times i have complained about the recent state of my speed. In the first month of having 5G being connected the the tower which i am currently connected to I had average speeds between 200 and 320Mb download and 50Mb to 80Mb upload. Now on a daily basis i am restarting the router suffering with slow speeds of on 50Mb to 70Mb download which is disgusting for a 5G network. I work from home doing many many video calls remote session connections and large downloads and uploads. In the past 2 weeks i have not had a single teams call in which i wasnt prompted that i had a weak network quality when no one else in my house was even using the internet. Your service claims multiple HD streams and i can even get a single SD stream without interruptions or sound drops. I will not accept any of the excuses i have received before telling me to move my router and other basic nonsense. My router hasnt moved from where it was set at its best position originally. Furthermore it is mounted on the roof and i cannot go up on the roof every day to tweak its position a few millimeters as your response team keeps telling me. This is not a solution. It is not a positioning problem. This is a network service issue. My average speeds have dropped 75% over the last 4 - 6 weeks. My teams, discord and zoom call and video quality has deteriorated with interruptions and call drops, my gaming speeds have dropped by half, my streaming devices all take about 20% longer to load. I was receiving the service sold to me in the beginning and now that i am a regular customer all my connectivity has been dropped significantly. Lastly I only ever receive a response from your agents after 6pm in the evening when i am not always available and when i respond the next day i never hear back.