No recourse at all that I know of with wire transfers, once the cash is gone, it's gone. Leave it with us, we've never had an issue with this supplier in the past and with the untimely death of one of the partners I'm sure it's a confusing time for them and while it's not ideal for customers, business probably isn't the prime focus just at the moment.
Give us a couple of days and we'll see if we can get the mess sorted out for you.