Some ticket resale companies allow customers to get tickets they wouldn't have otherwise been able to obtain, at a fair price. But others charge inflated prices for poor seats, and in some cases tickets fail to arrive on time - or at all.

So how is the ticket resale market policed? Critics say new legislation brought in last year isn't working and is openly flouted by some companies. The programme reveals a loophole meaning some foreign firms are illegally selling football season tickets. With fans booking travel, hotels and family celebrations around these events, what's the redress when things go wrong? Fans ask for answers, and ticket resellers and those who police the sector respond.