No customer service

I logged a service request on 03.08.2025, escalated on 05.08.2025, today is 11.08.2025, no response at all. So still the worst customer service ever, non existend. I called ***, no response. Pathetic. I renewed my fiber contract in February, the last two months I have no connection outside 5meter radius, I requested to get my router replaced. So looks like they follow up on service requests 6 months later? Useless paying for fiber if you have to sit next to router to connect to fiber. And yes it was resetted multiple times, only good connection is my lan connected to my PC. I am so frustrated. They jump when dishing out new contracts etc, but being a fiber customer for many years dont just dont care.