User Activity

I have not received my item I have shown proof to seller that item did not come and Aust Post proof it did not enter there system. Thay suggest it may be lost in the system. I have never had any issue until this seller with not receiving items. item ...
I have tried to communicate with the seller Australia Post has suggested that the item was never sent. i have proof of purchase my email is REMOVED and bank statement also shows. I can not see how also to report this seller I would of thought that it...