Lottery officials will this week announce where Britain's biggest ever jackpot winning ticket was bought.
No-one has come forward to claim the record-breaking £113 million EuroMillions prize following the draw on October 8th.
The ticket-holder could immediately become the 589th wealthiest person in Britain, according to the Sunday Times Rich List 2010.
But with time ticking the winner is still to come forward and claim their prize.
To speed the process up, Camelot will announce on Friday in which region the ticket was bought.
Camelot refused to confirm or deny newspaper reports that the winning ticket had been bought in Coventry.
A National Lottery spokesman said: "Our player services team are on standby waiting for the ticket-holder to call.
"They have great expertise in helping winners embrace life-changing wins and making sure that they are able to start to enjoy their new found wealth as quickly as possible.
"They will be on hand every step of the way to guide players through the winning experience."
The latest winner who picked the winning numbers 9, 30, 35, 39, 46, with lucky stars 6 and 8, defied odds of 76,275,360 to one to guess all seven numbers correctly, or placed their faith in a lucky dip.
