How disappointing! At least it sounds like they are going to sort it out for you, although I bet you are still disappointed.
They made a mistake in my favour with mine- it'll be interesting to see how many they make. I hope it's only a few, it would be a shame to ruin the potentially great sales of this car because of factory mistakes.
You'll have to sell the mats on ebay or to someone on hear.
Keep us up to date and your chin up x