Anyone have problems getting the right colour?

The BM store tried mixing Oxford White CC-30 using four batches and none them matched the paint chip. Some batches produced bluer whites and a couple were close.

The store called head office about it and they have not heard about any formulation problems with Advance. Perhaps I am the first?

In the meantime, I need a replacement and I hope Cabinet Coat for my staircase will be a good paint.