[how resolve inworld purchases not here]

Not sure where to ask this question been looking on here can't find anything.   

 

I have made purschases inworld but they don't show in my account, the reason I am looking for this information i made a purchased received my item and then when I moved my place I lost it when I contact the seller they told me they needed my purchase information which I can't give them as it is not there.   In the process of looking for that I noticed that none of my inworld purchases show, is there some where else I should be looking for this information.  

Thanks