Same experience here, went in April and wanted to book for a room in May and they reverted and mentioned that it is fully booed till October (*so happen falls within the validity of six months*, not fully booked till september or november but October!! exactly six months validity from the date we get our voucher!!), such a coincidence huh !!

IS there anyway we can complain about this as this is a waste of time and they are not fulfilling what they have promised the attendees.

This is intolerable!!