Good day Nairalanders!

Please, I need an advice urgently. I'm planning on booking an appointment with a particular embassy for further studies in a European country.

I overlooked an error which I thought wasn't a big deal but have been advised to do something about it by a friend. My date of birth; precisely the year have a year difference in what is on my waec and my birth certificate. The waec is wring of which I don't know how it happens. It's a year higher than my actual date of birth.

Now what I want to know is the right document I can get and take to a notary public lawyer. Which will be very authentic and able to prove that the error is not from me and permit the embassy not to use it against me.
Your kind advises will be well appreciated,

Thank you.