I ordered a sheet of foam from eFoam, shown in their add as a pristine white foam. What actually arrived was a sheet of foam, white around the edges with a large mustard coloured patch in the middle. When I contacted the Sales Manager I received no apology but the excuse that when foam is exposed to light discolouration occurs, I fail to see how this can happen in the middle of a sheet. I was then told that once they had received the foam back they would refund, no offer of prepaid labels for the return were mentioned even though I did request this. To return this shoddy foam would be expensive and inconvenient.