On 10 October I won an auction being conducted by the Parisian auction house, iNumis. I made payment on 11 October and since then have sent two emails asking for acknowledgement of payment and shipping information. I've not yet received a response.
Has anyone dealt with them before? If so, are they trustworthy. If not, should I be worried by their lack of communication?
It's actually making me sick in the stomach as the amount involved isn't trivial.