Made a mistake on the imm5257e application

[nick0111]

Hi,
I recently helped my dad apply the visitor visa, but I made a mistake on my father's given name in imm5257. what should I do?
And I received biometrics collection letter with that wrong given name. Does my dad still allow to do the biometrics with that wrong given name on the letter? please help me!! thanks

 

[Marj1991]

I got mistake in filling out my citizenship in form IMM5257. I already submit a webform. How many days is their response?