Order Only: What on EARTH?

I went out to feed the chickens this morning and I almost stumbled over a sack, sitting on the doorstep. It had the official Ouroborus seal on it, so you can imagine how startled I was! And I detected a charm on it, so that only I could see it. It dissipated as soon as I opened the drawstring.

I opened it, and it was FULL of Galleons! I haven't counted them yet--

Is this some sort of set up, so that I can be accused of theft? I can't deny I opened it, because the charm is gone.

Why in Merlin's name would someone at the Ministry give me a SACK FULL OF GALLEONS?!