Poor service and terrible connection

Never experienced such shocking service in my life

Plugged in my line 1st of March and have had issues with connectivity ever since. I have called the call centre multiple times, posted on their social media so much I got a top fan badge and still no assistance. My speed drops to literally 0 every single night, I have the screenshots to prove it, seeing as I work night shift online one can see the issue, I have even gotten a warning from my work due to my internet struggles. I have talked to I dont know how many people followed all the troubleshooting steps, been given a myriad of excuses and absolutely 0 resolutions. The tower connection was blamed, no improvement, was then told it was my router and that a technician would contact me, no call

The fact that I am paying for a service and receiving nothing is ********