Congrats Maldini on your MR.!!!!!
As a matter of urgency, I would advise you to notify Accra of the error in the spelling of your twin baby's surname , all errors must be reported no matter how tiny, particularly on spelling of names, and date of birth. If you allow this to stay, you may have cause to refer to it in the future, and such error may remain reflect on the COPR form.
I will share an experience with you.
My second daughter was recalled from boarding school when we got our MR, and of course you may know how children sometimes emaciate when in boarding school, due to poor feeding,etc. Of course during that period we had to take a new set of passport photographs as required by Accra, so my daughter appeared in that state in the passport photo, which was eventually attached to her COPR form.
Now, on landing, and at the immigration point, the officer that received us, argued that my daughter that landed with us was a different person, that it was not the same person on the COPR form. To convince her, it took us over 40 mins, explaining how children change when they are in boarding school, and had to even show her some family pictures. But I tell what, it was a frightening experience, at that point anything could have happened, we could have been denied entry, Yes!!!, the officer could have decided on various actions that would have been unpleasant, but of course GOD took control.
My experience here is obviously different from a mis-spelt surname, but I am sharing this just to tell us that we shouldn't overlook minor errors. You never can tell what it might lead to, ''a stitch in time saves nine''. Just my 2 goals scored by super eagles