[Vince]

This sometimes happens when you lose connection. It's a bug with SA-MP and you're not actually banned at all. Try doing a ping and a traceroute to the server via the command prompt. Another thing you can try, while in-game, is holding the F5 button and monitoring packet loss. If it's anything but 0.1% it's troublesome.

Edit: that limit is way too low. Suggest leaving it at default 3000.