Adstone slate affect shower tray 1200mm x 1000mm

BRAND NEW purchased in May ADSTONE SLATE EFFECT SHOWER TRAY 1200X1000MM & WASTE STWR120100 SPEC065873 *** THIS ITEM/S ARE NON-REFUNABLE *** Purchased the wrong size, the engineer never took into consideration that the size of the bathroom had been reduced due to the shower components and shower niche being built in to the wall on either side of the shower. The shower ended up pretty much in the middle of the bathroom. It was put down and taken back up. There is two tiny chips which will be under the tiles from removing it. The official brochure lists the model STWR120100 (1200×1000mm, White) at €1,152.90 inc VAT. I purchased at trade for €556.54 + 23%vat = €684.54 https://adamsez.com/product/adstone-stower-trays/