Two buyers not leaving me feedback...

[nechsa]

Anyone have in the past or currently having an issue with buyers not leaving feedback? I have two separate buyers who - as far as I can tell - have received their items (in a timely fashion) and are satisfied with their purchase but have yet to leave me any feedback. These were transactions that were done back at the end of July! I've left two messages for them each, with no response. The second buyer was slow to pay me initially until I bugged him, so I figured he was just being slow to leave feedback. But the first transaction was quick and seamless. Do I just keep bugging them, or do I just let it go? I feel like the transactions aren't complete. I took the time to leave THEM positive feedback, they should do the same.