£60 less than face value Secret Garden Party Ticket!!! ?

Hello! I have x1 full weekend camping ticket for SGP which is *this* Thursday-Monday! This festival is awesome, however I have just got back from travelling and I really cannot afford it, in fact I sort of need the money from this ticket to eat for the next month.. I paid 200 for the ticket so it breaks my heart to be now offering it for just 140. I am Essex based but work in central London and will endeavour to make the swap as easy as possible. Please let me know ASAP as I am panicking/starving. Hannah x