80 LP = Qualified for Series?

I just finished a ranked game and, unfortunately I didn't take a screenshot at the time facepalm, but it said I qualified for series yet I only have 80 LP so I am confused. I did afk in a All for One (long story) recently and I read a post on reddit that says if you afk/dodge in All for One you will lose LP so maybe that cost me some LP and I didn't notice and so the client displays my LP as lower even though it is actually higher because of this afk bug?

Some answers or confirmation one way or the other would be helpful thanks.