False abandoning que

Que for last game on low priority que, wait 20 minutes plus time waiting for finding teams. Normals, last pick in champ select. Gets to me, I scroll down champ list once and I'm ejected to main screen, wasn't even 5 seconds. Try que back up and it says I abandoned champ select, 5 minute 30 second wait. Try que for the third time and and its still low priority que so another 20 minutes.