Typo errors in the Phils is common problem which is annoying that you can't just change it. I am one of those who got a problem on my BC with the wrong spelling with just one letter from V to B (It gives me a hard time most of the time back in the Phils) everything I do I need a affidavit. Specially when I applied for my first passport i went thru a lot of hard time to get one as i need to produce loads of docs to prove that I am the same person on my BC. Im using B the correct one on my passport but in my BC its V.
So even in my MC still the wrong spelling as I can't use the right one w/o the court order. When I submitted my MC in UK embassy in Phils (2004) I included an affidavit again. I haven't change my passport to my husband's name since we got married in 2004 I just ammend it in Phil embassy London so when I applied for my ILR Im worried that I might question on that wrong spelling but they don't as i got my ILR with no problem.
Then now I am going to apply for my naturalization I am worried again with the same prob. Although my husband is always telling me I have nothing to worry as I am not using my maiden name anymore.