hey guys new on here! I have pass on my bank details to buyer and have and Courier ready, but I still haven't received payment. I thought once buyer hit the BUy NOW botton, buyer have to pay 1st before seller sent the product, and once product is with the Courier seller pass on the tracking number to buyer? Sorry just want to make sure, I just don't want to sent an item and get scam, I m sure they are lovely but I just want to do the right thing!