i wanted to know what are my options of my room left with cigarette smoke smell. I had asked the guests to smoke only outside but they appeared to smoke in the room too.
I'm sorry to hear about that! As you can see in this article, under AirCover, deep-cleaning protection is now included. This means that if any unexpected cleaning costs, like removing cigarette odor if a guest smokes in your home, occurs, you can make a claim to get a refund.
I hope this helps, but please let us know how you got on!