Battletag character limits

Hello there dev’s/forum,

I got a sugguestion or a wish that the battletag was more flexible & more than 12 letters,

I’m missing one letter in my battletag to have my ign (gamertag) correctly, sadly i have not face this problem elsewhere but only on the battlenet app/battletag i faced this problem that the limit is only 3-12 letters… i found that the creative mind could come letters too short for their creativity minds or long gamertags.

People like me with a longer gamertag do need actually more letters than given, in my case i need one more letter so with 13 or more letters it would’ve been sufficient for me but i believe more people would face this problem.

Is there an possibility that you guys can help me to get my battlenet right?

Friendly Regards,