I have checked the country brewer and grumpys sites and neither seem to sell DME in quantities over 1kg at a discount. For those who are strictly mail orderers (if that's a word) where do you source your DME from?
I'm sure that if you emailed TCB or even posted on their forum Shawn or Beavis would sort you out.
I've got them to get me items that aren't listed on their site before.