Check the stock before you start!
I had the same situation last year with this range.
Topps advertise that they are made in Britain and are suitable for floors - both facts are not true. The tile they show is a white biscuit wall tile that they are selling like BCT tiles with soft glaze, totally unsuitable for floors. However the tiles I received boxed as above were in fact porcelain and made in Turkey!
When this was pointed out to Topps in M25 corridor area of Redhill they stated that they were changing supplier of this range and hadn’t updated their webpage!
So they are advertising a British range of ceramic tiles to look like British quarried stone, but switching the supply to a Turkish porcelain without telling you! Sums them up really.