i mistyped my new name and had to contact the support
the answer was super wierd for a support
"dont worry i will fix this for you right now! ^^ unfortunately the name xxx isnt available, if you want just send me a list with 5 new names im a trying to link for you! ^^
im happy for your feedback

xxx
Riot Games Player Support"
my translate might suck here and there but thats it
never seen a support type "^^" or "<3"