Whilst I can understand that Westfield may not have an expensive stock handling/recording system the important issue for a lot of us Westfield owners is something called "customer care". I don't know much about stock handling systems but I do know about customer care having spent more than 40 + years in various customer service/customer care roles, and Westfield need to learn a few basic lessons. If Westfield have a problem with supply of parts etc, and it certainly seems they do, why can they not tell customers. A quick call to give updates or explain difficulties would do wonders for their image, answering their phones would give a better impression, replying to e-mails would show customers they really are interested.
My experience with Westfield since buying my car late last year, fills me with trepidation should I need their help. As someone said in an earlier post, they only seem to pop up here when wanting to promote something.