The resale of tickets through resale platforms is permitted. However, it is prohibited to make a profit on that resale.

Did you buy a ticket through a resale site at a price higher than the original ticket price? Then contact the resale platform. The reseller must refund the difference between the price you paid and the original ticket price.

If you paid by credit card, you can dispute the transaction via the website macarte.be, for example. Keep in mind that websites that resell tickets are usually foreign websites, where ticket resale regulations are not always strict.