How do you obtain a mexican birth certificate when it was done incorrectly in the first place?

My girlfriend lost her mexico id and her birth certificate was done wrong at her birth. It does not list the mother or father. How would you obtain/correct this? Since it doesn't have this information the place to get the mexican id says its invalid. Any ideas?How do you obtain a mexican birth certificate when it was done incorrectly in the first place?
Look.Here it is not the simple case.You know you will have to provide some documents like her parent specification and some other necessary documents too.You can inquire the criteria and all requirements from the county office and can fulfill it yourself.But if you don't want to be indulged in these tiring working and to save your time, you may contact any service provider to get their services.You can find a lot of them on internet.I can mention one but you can google the internet for many others.How do you obtain a mexican birth certificate when it was done incorrectly in the first place?
forget about it