BOX LOOT WHY DO YOU HURT ME

OK so i waited along time just like everyone but whats getting me mad it the frist thing i got was a twitch skin and tbh im not a adc main but then i got a key and a new box free from earning it but then i got a 2nd twitch skin??? that got me a lil mad but now when i open im just getting trolled :/

by getting supp champs i have already and i have pretty much everyone but really i dont understand why do we get champs we own in a box? and even when you get 3 then what re roll to get a champ you just got really what sens does this make riot plez talk to us if theres any info on this or something we can do like re-roll 3 and get a key if we get champs plez?