Problem with electrical item..

[plantopia*]

I sold an electric food processor  that worked perfectly.  packed well and delivered on the 10th February.       3 weeks later I get an email telling me that it is not working.    I am wondering  why she has waited three weeks to inform me it is not working as if I received an electrical item in the mail I would try it immediately..  Plus the fact that it was working well when I posted it.

Any advice out there please?