You should have read the signs.
I've been a member for almost 17 years and the rules on guests hasn't really changed, but the enforcement has. The club president is adamant that disobeying this rule will be used to throw people out of the club. I will tell you that not every RO is adamant at demanding proof. Permission is granted on a single use only. It is easy to get from the CRO by Email (bring it with you if an RO asks to see it). If you don't have it we are told to send you home. I have yet to be a hardass about it but personally have decided NOT to bring guests to this club (my other club is a lot less restrictive on this).
WRT an online request, the webmaster gets all those Emails and is a volunteer with other things going on in his life too. So he might not get to it for a day or so and when he does he sends your request off to someone else who may also not respond immediately. Going direct to the CRO is the best and fastest way to get what you need. Planning in advance helps, but isn't always possible. Also the CRO is <almost> always at the club every afternoon so you can see him in person if needed.
http://www.brp.org/BRPCRules/tabid/1769/Default.aspx#Guest_Policy
[If it isn't obvious, I also don't like the strictness of this policy, but I don't get to create club policy.]