Accepted buyer offer but haven't received money on Ping

Yesterday I accepted a buyer's OFFER on a listing. The listing is now closed but when I checked my Ping balance it's showing me $0.00. I even checked my Transactions history and the latest activity was my top-up for my TM account. I thought the whole point of enforcing Ping is so that the payments are INSTANT and SAFER??? I was ready to send the item but stopped because I don't see that the money has come through to me. Even this morning when I checked in case there was a delay on TM's side, it's still showing $0.00. On my listing I can only see buyer details and the amount of the item and the shipping but nowhere does it indicate payment status. Is it slightly different for an ACCEPTED OFFER where after the seller accepted their offer, the buyer still needs to MAKE A PING PAYMENT ON THEIR END? Is it not automatically taken after the seller accepts their offer?? Since I do not have the funds on my Ping balance at the moment I cannot ship the item out until I receive it