According to Emily Eavis and her stream of tweets, there's still Glastonbury tickets available - 0844 412 4635 on the telephone, or you could try the website. Although, as is now tradition, that's fallen over.
It's not even surprising that Twitter is full of stuff like this:
i have no idea if ive Glastonbury tkts, im 90% sure, but as the booked crashed, im just waiting for email confirmation now!
Still no Glastonbury email. Might be time to go back to bed and stop worrying for a while
Year after year, the booking system fails to support the level of interest. Presumably since it doesn't mean nobody turns up, that's why they don't bother making it work, even though they must know the load levels they should be having to cope with?