Definitely the suppliers responsibility to check .
We roll up to a job , discover mixed batches , then what . Reject the tiles then go home and sit on our behinds while the problem is being sorted out . If we're busy , by the time the new tiles have arrived , we're onto the next job and could be weeks before being able to return to said job . Big problem , people don't like waiting!
AND WHO PAYS FOR OUR WASTED TIME DUE TO A SUPPLIER'S LACK OF PROFESSIONALISM
We roll up to a job , discover mixed batches , then what . Reject the tiles then go home and sit on our behinds while the problem is being sorted out . If we're busy , by the time the new tiles have arrived , we're onto the next job and could be weeks before being able to return to said job . Big problem , people don't like waiting!
AND WHO PAYS FOR OUR WASTED TIME DUE TO A SUPPLIER'S LACK OF PROFESSIONALISM