Switching to IDD, just like that.
Diving is universal. IDD world diving certifications are recognized worldwide. Just like PADI, SSI and NOB. Have you done your training with one of the other trainers then that's no problem. Just let us know what kind of training you've done and we'll tell you which certifications fit your needs.
Are you an instructor or do you have a diving school? Then you are also welcome!
Get back to me.