Review Broken third grade tiles

Attention queries department
I bought tiles at CTM south gate and the total amount was 5100.00
I requested to collect the tiles on the third day after my purchase. My sister collected the tiles but to her surprise she was told we did not buy first grade tiles because some of the tiles were broken and some of them were not in boxes. She asked them why they did not tell us that when we purchased them. There was no answer so I need to know what are supposed to do? These tiles were bought a few days before easter holidays this year. You can contact me at ********. I want to bring back the tiles what must I do?
If we wanted to buy broken tiles we would asked for broken tiles.
I cannot purchase new tiles and upon collecting I am told I bought third grade tiles.
I hope you read this review and come back to me asap
Tks