Kinda been scammed in a stupid way, need advice on what I can do?

I recently sold a bmx part to someone who lives in barrow in Furness,the silly thing I did was let me send the product before receiving the money , Th

I recently sold a bmx part to someone who lives in barrow in Furness,the silly thing I did was let me send the product before receiving the money , They messaged me saying they received it and that the money was sent via post , but I haven't recoeved anything in 2 weeks

or:I recently sold a bmx part to someone who lives in barrow in Furness,the silly thing I did was let me send the product before receiving the money , They messaged me saying they received it and that the money was sent via post , but I haven't recoeved anything in 2 weeks

or:That is illegal to scam people, talk to the police and never send someone the item first. Always wait for the money.

Tags:money,