I've never heard of this Anticon and the only person I know who had it installed was from England.
I think Anticon is pretty standard wording. However its never a standard inclusion with most builders
We didnt expect it to be standard but didnt expect to be paying twice what we should.
I think the whole thing is going to fall in a hole - we are waaaaayyy over what we told the bank initially and I cant see them giving us finance now.