Hi Albert,
To be honest, i have never hear about this refusal factor except for Syrians in this website, believe that due to the current war as all knows.
I don't think that Iqama copy will be enough, cause i already attached it to my first application and got refused.
some Filipinos used to chose a worker in country of residence option inside IMM5257E mentioning the period from their first day in KSA until date of their iqama ends, finally they got approved from VO's, hope that will increase the chance of success.
the main question will be : Is Vo's are refusing and accepting applications depends on nationalities? i hope that will not be.
what was your other refusing factors ? are you Syrian too ?