Potential Deception?

I sold a product on the BOB Shop platform on May 28, 2025. On May 29, the platform system showed that the buyer had paid BOB Shop. Therefore, I booked the shipment on the BOB Shop platform on May 29. That same day, a driver designated by the BOB Shop came to pick up the goods. The strange thing is that without notifying me, BOB Shop unilaterally canceled the payment due to me on July 3rd. The platform's system currently shows that the goods were delivered to the buyer on July 10th. Tembisile Faith from the BOB Shop asked me to provide an invoice for the cost price of the goods sold so that she could provide it to the transportation company they designated. I believe that if the BOB Shop system shows that the goods were delivered to the buyer on July 10, then BOB officially acknowledges that I, as the seller, have fulfilled my transaction obligations. I should receive the sales proceeds reasonably and legally. As for the cost price of the goods, it has nothing to do with BOB Shop and is irrelevant to this incident. I now solemnly request BOB Shop to pay the sales amount owed to me as soon as possible in accordance with national commodity trading laws and regulations.