@Steve *********
do not change your visa extension. You can legally get a work permit, and work with that extension. Most likely the BOI company is not aware of this, and has not dealt with it before, as the reason they want you to change, but don't do it. If your job ends, or they go out of business you face having to start over getting back on your marriage extension, and technically have to do it in just seven days. The only restriction to this is if you are a working journalist. As of three years ago they want all journalists under the type M visa extension now,but that is the only exception.