Bait n switch in the carpet cleaning industry is when a company will advertise a promotion or special to get you to schedule an appointment.  For instance they will quote you $50 to clean 5 rooms, when the carpet cleaner arrives he says to the homeowner that the promotional price will not get the carpets clean or take the spots out.  He tells the homeowner that they will need to pay for the additional chemicals and cleaners that will do the job.  This increases the bill by a lot.  I have heard of people paying over $500 to clean 3 rooms of carpet.  The homeowner agrees to the new amount because they are already inconvenienced with moving the funiture and scheduling time away from their busy schedules.  Allied Carpet Care does not use Bait n switch tactics.  We clean a lot of carpets where the customer leaves a check for the total we quote over the phone.