I would like to send buyer requests to my buyers. I did send that before and some were not accepted yet, What I can do to send buyer requests again to all buyers, If I do…Is there any problems?
Do you mean you would like to send offers to your buyers? If so, you can only fo this if a buyer contacts you first. What you certainly must not do is send offers to previous buyers (or anyone) unsolicited.
If you do, this will be considered spam and your account could very well be restricted.