Platinum - SD Memory Card - 4GB

I ordered this one in SD card which can be read by the radio of my Audi that can only read this type of card.
But once delivered, I realized what had been replaced with an SDHC card. The supplier said he had none and had spontaneously been replaced by a much better SDHC card. I should be compensated (ongoing), what I regret is that it is replaced with another card instead of answering it had rained in, it would have been more professional, whereas here we are wasting our time one as the other.