[1] For individual administration on phone (NTCA Information Line 2), you must have a client identification number or a Partial Code Telephone Identification (RKTA). You can apply for a customer identification number (’ügyfélazonosító szám’) using the for ’TEL’ downloadable from Online Nyomtatványkitöltő Alkalmazás or in person at the NTCA taxpayer service points; and you can apply for a partial code telephone identification number at government offices. Please note that if you do not wish to use the individual telephone service for your own case, but wish to act as a representative, you must have the necessary authorisation to act as a representative, which requires the submission of a form ’UJEGYKE’.