What I understand, your husband should go by Himself and speak to the higher authority. Mandoop can guide your husband specially if your husband cant speak arabic. But still people in immigrations are all professional. They need some explaination more from your husband rather than from your mandoop. This does not mean you can get it if you go there. Sometimes you have to come not only once, twice but sometimes more than 3 times.

So let your husband prepare all the papers and go by himself. Speak to higher authority and get the document signed. Hope ou can get it!