Friend list bug.

Hello Riot I would like to report a bug that I found on the friend list.One of my friends changed their name (I didnˇt know that) and whan I tried to look at their profile nothing would show up and whan i tried to search their name on LoLKing it wouldneˇt show up there either.So later i asked him aboult that and he said that he changed his name and whan i went to search that name it showed up but i had to send him a friend request again and now i have both of the "names" in my friend list and i cant even unfriend or block the previous "name".I hope that you see my message and work on fixing this problem as soon as possible.And dont mind that I am such a low level i logged into the wrong account.