[CLIENT] Lost my Silver I to Gold V Promotional Series with two losses

I got to Silver I series, meaning I had to win 3 of 5 games in order to advance to Gold V. The thing is I lost the two first games and it automatically took me out of my series, I still had a shot to win three straight games and still pass my series and enter Gold V but the client just took me out of it and left me at 65 LP. Based on the urgency that the season ends today I would like to re enter my series and have a shot at entering Gold... please solve this Riot, thank you.