Dispatches' footage appeared to reveal that Viagogo used the credit cards to bulk buy tickets on the primary market, with the intention of reselling them back to consumers at huge mark-ups on its own site.

One of the company's employees was caught on camera labelling the practice "highly, highly immoral",

However, in a new Q&A in today's Music Week - with subscribers now - Viagogo UK director Ed Parkinson defended the company.

"That practice was really misrepresented by the programme," ...