LoL bug

LoL is bugged. I was playing a match, and my internet connection is horrible, so my screen froze, and I hat to reconnect. When I reconnected, everything was fine, I keept playing, but at the end of the match, they told me that I was afk and now I have 5 more times to wait 20 min. This is just wrong. Why? Please fix this shit. And if possible, please remove my leavebuster, or at least get it down to 3, like it was before.