Comps are complimentary items and services given out by casinos to encourage players to gamble. The amount and quality of comps that a player is given usually depends on what game(s) they play, how much they bet, and how long they play. Most casinos have casino hosts responsible for awarding comps and contacting players to bring them back to the casino. Pit bosses can also award comps at table games. Despite the strategic importance of the comps in the casinos' structure, there is no separate profession for it, in different gambling houses, different specialists may be responsible for it. Most casinos ask players to get a player's club card so their play can be tracked and comps awarded accordingly. Levels The lowest level of comp is free alcohol. Many casinos provide free drinks to anyone gambling. The second level of comp is free self-parking, lounge access, or free meals. Many casinos have several players' lounges and restaurants and might require more play to earn a comp to higher-end restaurants. Often the player is given a certain amount to spend, but sometimes high rollers might get to order as much food as they want and bring guests. The next level of comps is free lodging, free valet parking, and free access to more exclusive high roller lounges. Many casinos have attached hotels, but those that do not can sometimes comp rooms to a hotel nearby. Many casino hotels have better rooms, such as suites, villas, and presidential suites for bigger bettors. Many players who get hotel rooms also get a package called "RFB" (for "room, food, and beverage") or "RF" (for "room and food"). Many casinos also offer other comps, especially to high rollers. These can include airfare, limo rides, show tickets, golf, concierge services, cash back, loss rebates, private gaming areas, and private jet service. Casinos also often offer players comps by mail, email, or app. These can include free bet offers, free meals, discounted or free rooms, tournament entries, or prize drawings. These offers often come with terms and conditions for rollover and wagering requirements. Some casinos contract with bus companies to bring players. Riders often enjoy free slot play and dining coupons often worth as much as the bus fare itself. Calculation Technically, every player may be offered comps, but most casinos require players to have played for a given period of time and at a certain level;