Thank you for your feedback.
There are a number of reasons why a grout would crack; one being if the incorrect ratios of water to grout has been used, or there is movement on the floor substrate underneath. We also advise not walking on the flooring once grouted for a minimum of 24hrs as this could dislodge the grout before dried.
Sorry, you have experienced some issues, if we can assist further, just let us know.
“Our tiler was impressed with the quality and look of the tiles. They are porcelain so extremely hard to cut without a diamond cutter which you would expect and did not crack or chip at all during cutting process. Our bathroom is now finished and looks fabulous.”