Decided to join online today.1. Monthy direct debits unavailable due to an "IT Upgrade". Annual direct debit or debit card/credit card only.2. Membership pack and card will take up to three weeks to post out (and the rest - the Royal Mail are striking on and off as of yesterday).3. The temporary membership card emailed is a PDF template that has to be printed out on a monochrome printer and then the page folded such that it fits in the car park machines. I don't possess a printer - never needed one for several years.This archaic process is nearly as ancient as some of the castles and grand houses they look after. Why can't the membership card be part of the otherwise useless National Trust iPhone app? Even our Victorian British Railways have a railcard app these days.