I would tell them just nothing but "I did not order anything". Fact is that someone sent something to you.
Tell them you did not order. If they have no evidence for your ORDER you cannot be punished at all.
Those who sent it to you coud be punished then by law...but they are far away...;-)
Ther must be an evidence, but how coud they get it when the oder script is somewhere in anoteher country?`
So your untouchable by following those rules!