Worst service provider in the world

Worst service provider ever two days after signing up with them they started giving me problems. I signed up with them on the 28 of August 2024, a lady promised to deliver my router in 5 working days however I was charged before my router for the the subscription before my their router arrived when I called and asked why they said I must ask for credit review.

On the 9th of September 2024 the router arrived and on the 11th a debit order came in and their explanation was you pay before using their internet, when I asked why I am billed a full amount while we are two weeks to a new month again they said they I must request a credit review so that I can be charged correctly.

I received my router on the 9th September 2024 on the 12 of September 2024 services were suspended for non payment. They never bother to call or email explain themselves, I am the one who's always keeps calling them till this day they haven't called or sent an email the last time I received their call was when they were trying to sign me up. I have called them more than 20 times asking them to terminate my contract and come collect the router however till this day they are still investigating. I recently received an sms from them saying due to non payment my account will be listed to credit bareau. Is this fair treating still no phone call from them no email

Worst service provider in the world