WHY CANT I PICK MY NAME

[-Ace-]

so ive got the game and loaded in, done the little tutorial mission and realised my name is ado290438fgskj or some wierd $hit like that id dont even know if i can link an ea account.

any one know how i can fix this

[♢︎♢︎♢︎♢]

change it on EA website or the EA app