During the time she was registered in her local municipality, there were three copies of BC (Birth Cert) One for her mother, one for census and one for local municipality. Mother knows where she was registered.
IF mother cannot remember anymore, she can visit the nearest census office (NSO) and try to get a copy. Every City has their own NSO office branch. If she's not registered, she will be considered as late registration. I wish she is registered as applying for a passport for late registration is not that easy. She needs to prove that she didn't change her name and she needs some requirements in appying late registration.
If she knows where she was baptized/christening, the church can issue a baptismal certificate which she can check the date of her birth as well. This is also helpful to support her application.
Some applicants can't get NSO BC cert because they have sometimes declared wrong dates in the BC application form. i.e. date of registration etc.
Don't depend too much in agencies. The more she do it for herself, the more she will learn everything about government SOP's and learn to be more independent.![]()