Tottenham Hotspur has been criticised by its own fans who have raised concerns about fellow supporters attempting to resell match tickets for as much as £1,000.
Last month, the North London team entered a three-year deal with the ticket website StubHub, a subsidiary of the online auction site eBay.
The commercial partnership allows season ticket holders to resell their tickets online for as much as they like.
But there has been an outcry from fans this week with some fans attempting to sell tickets at extremely inflated prices.
For example, one seller priced two tickets for the Spurs game against Chelsea at £1,265 each.
The Tottenham Hotspur Supporters Trust (THST) says there is a real concern over the lack of an upper price cap.
A spokesman for the trust said: “The lack of an upper price cap is a real concern and one we flagged with both the football club and StubHub before the platform went live.
“THST has called for all tickets to be listed at face value and will continue to do so.”
The trust says it is unethical for season ticket holders to make a profit from a fellow Spurs fan but adds those who raise ticket prices are not doing anything wrong under the terms of the deal.
The spokesman added: “There is no upper price cap and fingers are being pointed at fans when they really should be pointed at the club for entering into a commercial partnership which advocates this.
“Pitching fan against fan is simply unfair.”
Some fans have also expressed concerns about seats being empty because people will not be willing to pay the asking price for re-sold tickets.
However THST says this is unlikely to happen as the majority of season ticket holders will still attend games and only one to two per cent of the club's tickets are re-sold online.
Spurs have defended the ticket exchange system and says there is a difference between the amounts a ticket is priced at and how much it is actually sold for.
So although a ticket may be listed for £1,000 that does not mean it will sell for that price.
A club spokesman said: “The majority of tickets sold to date for the season’s first three matches have done so for around or below face value and tickets listed by Season Ticket Holders at greatly inflated prices have not sold.”
He added that every fan who is a registered member of the club would be able to buy a ticket at face value directly from the club.
And the secondary ticketing system would only kick in once all the tickets had sold out.
The spokesman said: “Tickets for the matches against Swansea City, Norwich City and Chelsea were sold out after reaching general sale status.
“This means that all One Hotspur Members that wanted to purchase a ticket had been able to do so directly from the club at face value.
“Only at this point did the StubHub service become ‘live’ and enable those season ticket holders not able to attend the game to make their tickets available to other fans.”
Spurs have called on fans that want to resell their ticket to do so at sensible pricing levels and have promised to continue to monitor the activity on StubHub.