that is because people offer 8 weekly cleans, then as they are desperate offer 3 monthly, just say no, as the next thing will be every 6 months, then we will call you, i only do 1 8 weekly now, becasue it is next 2 a job i do and is a old women, use to do a few till started getting lods on the street, can we change to 2 months as no 7 has