Failure to deliver and communicate

I bought Vitamins from this company online and didn't hear for over 2 months. When I called them about this failure to deliver they just said that the payment hadn't gone through and that the order was cancelled. Nevertheless no one or even the system communicated with me about this and I never have a problem with my online payments so what is this? No communication, no goods and my payments work anywhere, any time with everyone else? On the phone she didn't even give me a good reason as if it wasn't the card that was refused... so I wonder? What is going on here, what are they hiding and why can't they talk straight and communicate?