I was trying to extend my viza and I got a very rude Immigration officer who kept picking on me. First of all, I applied 10 days before the viza runs out but the he kept insisting that I'm applying late and he kept asking me why I'm applying so late. I told him that I'm not late because you can apply within 1months before your viza runs out. Yet he kept asking me why I'm late. The next time I came to bring some additional documents to him he started picking on me why I didn't submit the photocopy of the photograph before seeing him and I said that people who took my documents said that there's no need to give them photocopies and that I should give them to the officer himself. He began picking on me for not giving copies to those people and why I didn't do so, even though I told him that they didn't take them. Seriously, this is just unprofessional and rude and I want to complain about it. I would like to know about the proper procedures of making a complaint?