Hello - I am having a slew of issues with this service. 

1.  Internet drops constantly. At least 10 times per day, my internet quits. Usually it restarts after a few minutes, but other times the modem says “Kabel-Fehler.”
2. 5G does not work. It always flashes orange. 
3. when i try to log in or call to Telekom for help, I am told I do not exist as a customer. Kundencenter shows no contract, no invoices, etc. But I have a customer number and am being charged each month for bad internet.