Can I ask my orthodontist to take my braces off, and will they still put the wire on afterwards behind my teeth?

my orthodontist is constantly rude and makes my appointment times further away. he said they would probably be on longer then the year and a half. now they haven't been on for a year and a half yet but the time is coming up close, they should be taken off in April this year, but they wont be. so can I ask for them to be removed and will they still put the wire behind my teeth if I do ask them? please help