What you need to ask yourself is this.
When you need a service, such as a carpet cleaner, were would you look,  probably like most you just google carpet cleaner wherever.
This type of marketing does not work. A fool and his money are soon parted and I have been that fool.
Advertised on an estate agents hand out, full colour gloss, £1000, seven years ago, not a single call, so I called the estate agent as someone who'd just moved house, and asked could they recommend a good carpet cleaner as I had just moved into my house, carpets are grubby,  response was "try yellow pages, we don't recommend anyone its not company policy"  Nuff Said
Regards