I want to apply for HND program but the criteria for application is that applicant shld provide jamb admission letter and jamb registration number because of NYSC.

I wrote jamb the same year I gained admission during OND but I didn't use the jamb result for the admission process so I don't have jamb admission letter, my question is can I use my jamb slip in place of jamb admission letter? Will it affect me during NYSC mobilization?
Experience minds shld pls enlighten me