OCI Misc Service ERROR for Minor

Hi All,

I'm getting this error 'Applicant is Submit wrong service code' when trying to update the address or new passport detail for my son (minor). Tried with all different permutations/combinations but every time it gives the same error.

Has anyone else seen this error before and do you know how to get this resolved?

Also, any idea what to select in the occupation dropdown for a minor?

Regards
Atif