Worst ISP sign on experience EVER!!

I am fuming with anger right now, after calling this service provider almost every stage of the ordering and installation process because of lack of communication from their side i finally got my "pre-configured" router delivered to my office.

Excited that finally i can have connectivity at home, guess what the router is not working immediately i call the support line turns out my router firmware is not updated and lacks the VPN option i am then instructed to do the firmware update my self after such a long day at the office and having stuck in traffic.

But because i desperately need to be connected i take the instruction get the firmware update the damn thing and reboot now its worse the router keeps going on and off wifi ssid can not even stay detected fr for than 30 seconds.

i am honestly super regretful and angry mind you have not even paid i am writing my second hello peter complaint about this provider and i am honestly tired.

can one ISP provider just not be such a disappointment.