I too have this issue. I noticed that if you buy ONE (and only one) item of anything at a time, it takes your money AND delivers the item to the TP. If, however, you buy more than one item at a time (let’s say jute scrap x15) it promptly takes your money but gives no confirmation screen, no items are made available for pickup, and the transaction does not show up in your transaction history under EITHER ‘Bought’ or ‘Buying.’