Fake WW2 medal help please

[Buzz]

Hi, I'm new to this forum but looking for some help please. I apologise if I am vague with details but I am sure that you will understand why until I have resolved this matter. I was browsing the internet earlier today with regards to my wife's uncle who was killed in ww2 and who at the moment shall remain nameless. I was amazed to see that in November last year his war medals and some related documentation came up for sale at an auction house in England. They were sold. Further investigation revealed that they have since been sold on again on an online auction site. All well and good except for the fact we have his war medals and related documentation in the family and have had them since or not long after his death. My question is what is my best course of action now?
Many thanks in advance.