Hello Great Man and welcome back to the Wefugees Community!
Since you applied for an "Ausbildung" (vocational training), they most probably asked for a "Gleichwertigkeitsbescheinigung" (certificate of equivalence) regarding your school diplomas, right? Handbook Germany explain the background and the respective procedure very well. They also explain on their website:
School Diplomas are recognised by the Certificate Recognition Offices ("Zeugnisanerkennungsstelle") of each federal state. You can find the responsible office in the anabin database. If you would like to have your school diplomas recognised because you want to study in Germany, you can also contact the university of your choice.
I hope this helps and please don't hesitate to get back to us with any further questions.
All the best,