So I see that Brand 
, a champion I've always wanted, is on sale tomorrow, right? Almost sure I have enough rp, I check in case. 439/440 needed. After realizing there was nothing I could do, I proceeded to watch "The Notebook" and cry while eating ice cream. If anyone has any idea on how to achieve my dream, please let me know below.
eKatSS2 votesSolution: Buy RP while watching The Notebook. You get the Champion, tears included.
Savage the King2 votesip works too xD
WWWWWWWWWWWWWWWV2 votesIf I make a really detailed Brand picture can I get 1 rp? Lol
Stillhart2 votesGenerally, they will do this for you if you post it in GD on the old forums.
Or like others said, you could buy more RP or you could use free IP. Seems like a waste to buy a champ with RP to me... especially Brand.
Freezman2 votessubmit a ticket
https://support.leagueoflegends.com/home
They will be glad to help ya out. And do draw a brand picture with the ticket! Also submit it here!
Solan Stonewhip1 votesyou can say something on help/support. they will sort you out