Yesterday I tried to buy some spirit level vials to go in a template project to assist with fitting kit car headlamps. Irrelevant really but that's what they are going to be for.
Recently I've been trying to buy more ethically: you know the sort of thing - local stuff, no out of season imported perishables, no cheap Chinese cr@p (for both political and environmental reasons), the same for USA goods (same reasons as the Chinese) - you get the idea. Not going over the top (have a GTA after all, but trying to change some of the things I do.
So I approached a UK company
PR Engineering 
after having found their web site. Some snooty female who answered the phone first wanted to know if I was from a company and then when I told her that I was not, declared that they had a minimum order value of £50 and that this order wasn't worth the trouble. For heaven's sake all they had to do was put the things into a jiffy bag and post it.
Another company on the web
Level Developments states on their site that they have a £50 minimum for phone sales and a £25 for web sales - but there's no means to buy on the web through their site.

Haven't spoken to them yet.
What do I do now? Ebay has cheap Chinese cr@p scaffolders levels that I can buy for less than a tenner delivered and then butcher for the vials. So much for my good intentions.
So you fine pair of UK companies - you can't be bothered to sell me what I want because I'm not worth the trouble. You might have lost a much larger order because of this - unlikely but you'll never know. I don't know how well you are doing but you deserve to go to the wall.
And PR Engineering - fire that supercilious bimbo who answers the phone and makes your sales decisions for you. She didn't even ask how many vials I wanted to estimate the value.
To the leaders of industry: every customer matters. "Look after the pennies, ..." as they say.
Going to lie down now.