CloviaWomen's Crepe Polka Print Resortwear Short Playsuit in Blue

The product description says that the product dimensions are 30 x 30 x 3 cm for an M size. This doesn't make sense. How can a dress be 30 cm x 30 cm x 3 cm in dimension? No size chart is provided to support the size. I had ordered assuming that an M size would be average size. Now when the size is not fitting, I asked for a bigger size (and not return/refund), Amazon is denying replacement, saying it is non-returnable. I would have picked the correct size in the first place, if the description was properly provided. This is clear deception from the seller to clear out their unsold stocks and Amazon is supporting it.

Very pathetic to see the Amazon's vendors and service executive response