3 free champions and skins bug

Dear Riot , For some time you have given us three skins + champions , Alistar , Garen and Thristana . I obtained all the boards except Alistar , because every time I click on the " subscribe to our channel " button it tells me that there was a mistake and I have to start later. I retried numerous times with multiple youtube channel and I also have many times try again later. No time has walked , I wanted to let you know by Hoping that this bug will be fixed as soon as possible. Thank you , I hope to have the chance to reconcacter you again , goodbye . -Mr.Inferno 64