Swguy,

thank you for your speedy response. Would that be in the same file as the error (sorry not a php programmer at all)? i.e. the includes/modules/ot_bettertogether.php file rather than any where else and any clues on how to work out (I am assuming I need to go from the start of the file and work out all pairings and then close off accordingly.)

Odd it was working and then I just added an offer and it fell over?

Thanks

MG