Educational Authority Accreditation Centre for Foreign Language Examinations Postal address: 1363 Budapest, Pf. 112. Customer service (only in person): 1122 Budapest, Maros utca 19-21. Telephone: +36 (1) 374-2135 E-mail: info.nyak@oh.gov.hu Issuing a combined certificate Information on the procedure of issuing combined certificates of oral (type A) and written (type B) language exams to combined (type C) examinations » Combined (type C) certificates of economic special purposes exams » Exam Systems »