"But, at this point, can they still make you pay?"

IMHO

I dont see how they can

They have not got your card details & they have not provided you with anything so far.

"If you don't pay within 4 or 5 days, you loose the tickets"

Means if you dont pay deal is off.

This is what goformusic says:

The time limit of the 'pay-by' date will be strictly observed when the selling out of the event or the price category is imminent.

Even in case of late payment, Tele Ticket Service has the right to make a reservation if there are enough tickets available of the price category.

Service and administration costs are in any case definitely acquired by Tele Ticket Service.

.....so I guess if you don't pay they can't make you to and that's the end of the story. They probably send reminders just in case you forgot. If you call them, they say the show is still on. LOL

brussels is off but stage is in werchter!

brussels is off, but stage is in werchter