From the Fellsman facebook page on Wednesday:

"Online entries will open tomorrow evening (Thursday 10th Jan) at approximately 20:13 hours.... 100 places will initially be available, then we'll see how it goes. Its already filling up fast..."

(And yes it really did say 20:13 )

The fellsman website says something similar. They are therefore obviously keen to protect postal entries by keeping a handle on on-line entries and I'm sure everyone who's sent in an application to date is absolutely fine.