Interesting my dear Watson....I can't either and it would appear that my "phishing filter" is holding up the process so maybe they have something dodgy with their web set up. Suggest you give them a ring, they're only in Southampton.....Yours Holme.
Using Firefox on a Mac I had no proble.
I have been on to the web page and also had no problems, have you tried copying the web address and pasting it in your search box. this is what i did. what a great offer from p and o.