You would. But, this is a topic that gets frequently raised on all the forums that I'm on. It seems that email is usually the culprit and while I've some sympathy with the importer/retailer etc , there is a responsibility on them, if they publicise an email address, to respond.
However, with all the spam email that many businesses get, I don't find it that surprising that many do not get replied to and suggest that you try again by phone. One small shop told me a while ago that they get over 200 emails a day asking for prices and can they match this and that. But, they shouldn't give an email address if this is what happens.
I emailed an organisation through the 'Contact' page on their website recently to cancel my annual subscription. The £90 sub was still taken by direct debit a month later and when I phoned, the lady who answered the phone got quite snotty with me implying it was my fault as that was not a good way to contact them. I don't often get irritated, but she know very quickly that on this occasion that she had managed it. I finally got my money back, but have learned that email and other such contact methods are not the best. I should have phoned.