I have just been on Deans marine website to check a few things out,
1- the past two weeks it looks like they have been at two shows Sandown and Warwick which takes a lot of planning and organising.
2- in the contact us form for the email section quite clearly states that you have to fill out the box marked 'verification' correctly which prevents spammers accessing the the site, I would presume that if you did not read the info regarding the postcode which has to imputed into the verification box it would automatically go into the spam box. This could explain why George might not have got a response, of course can't confirm this without talking to Ron first.
Whilst I know that if you try to contact a manufacturer and they do not respond it can be very frustrating there are very few suppliers left let alone model shops to buy them from, please try to refrain from bad mouthing them because some manufacturers very rarely receive good praise and it's always the bad stuff that people remember, once a manufacturer disappears there are very few people left to replace them then we all moan that we can't get any kits or parts.