24h Call Center non-existing

What is the use of having a 24h call center if nobody answers the phone? Our Fibre has been off since last night. I phoned this morning at 8:30 to find out what is going on, after which the lady indicated that the support teams will call me back right away. It is now 2 hours and 30 attempted calls later. I can't get through to any line. Will someone PLEASE help me?