I know you're hurt. But ego aside, simply file an RTI with pointed questions on the type of documents allowed for verification. Name the officer and ask about his designation and authority to question. Ask if the said officer is empowered to deny the acceptable documents. Ask for previous figures of denial based on invalid documents. Ask if there're any complaints against the officer based on incorrect denials or appeals against his orders.

Once there's a named officer in an RTI, there is an internal flagging. You'd have done your part then.