what a funny question, they do i see it every week at most supermarkets in the uk but your best bet would be either boots or superdrug goodluck with your bubble hunting :)
Mindbullets you've got me thinking about what you actually want to do with Matey by posting this in the Food & Drink category. Strange habits, some people. Suggest that you have a look at the Matey website which is here
http://www.matey.co.uk/
Hope you like the taste !!
I seem to remember that when Super Matey came out in the 1970s, the selling point was that unlike other products, it didn't sting your eyes leading to many a happy bathtime!