Although tickets for the rest of the country have sold out, there are still people in Hackney who not claimed their coveted tickets for Radio 1’s summer festival on the marshes, for which superstar singer Rihanna was named as a headline act this week.

Thousands of pre-registered music fans trying to bag tickets for the Hackney Weekend were left disappointed on Sunday, as the first 50,000 free tickets went up for grabs at 11am - half of which were reserved for those from Hackney.

They barraged social networking sites Facebook and Twitter with complaints about error pages and long delays.

Shereena Grey wrote on the event’s unofficial Facebook page: “Started refreshing the page from 10:40... got a holding page for 2 hours, finally got the “buy ticket” page at 13:00 ... SOLD OUT. I hope tomorrow is not the same.”

However others were successful with their orders - Nicola Alexandrou ‏posted on Twitter: “Got tickets for Sunday at #r1hackney this morning! Can’t wait to see @rihanna.”

Radio 1 said the problems were caused by the “high volume of traffic after an unprecedented demand for tickets.”

The process was smoother on Monday, when the second save of 50,000 tickets were released at 4pm.

The 25,000 allocation of free tickets for people living outside Hackney was snapped up within an hour.

But by 7pm that night, only three quarters of apathetic Hackney-ites who had registered had claimed their tickets.

Part of the 2012 Festival, American rapper is the second headliner act, and the star-studded line-up includes Leona Lewis, Example, Plan B, Florence and the Machine and Tinie Tempah.

For those registered in Hackney, it’s possible to claim until 4pm on Monday April 9 at bbc.co.uk/radio1.

Any unclaimed tickets will then be offered to people living in the rest of the UK.

Tickets are free but there is a handling fee of �2.50.

BBC3 will screen the event for anyone who wasn’t lucky enough to bag a golden ticket.