It turns out the customer; or as I like to call her now ex - customer, didn't approve of the price I charged her, even after telling me how delighted she was that every speck of coffee stain was removed from her carpet.
Now personally I don't think my price was excessive - £30 for an hour of my time, including the cost of the stain remover

First she said that she didn't have £30 on her, gave me £20 and asked me to collect the other tenner on the Friday, just like our window cleaning customers. Then when I get there on Friday she tells me the carpet still has marks on it. Of course it did, not coffee but just other dirt that wasn't cleaned due to her asking for just the stain to be done :

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Then she tells me that as she only paid £50 for the carpet I was charging her too much.
We've cleaned her flat twice before with no problem so why she decided this time that we charged her too much I've no idea

Anyway, I told her to keep her £10 as she obviously needed it more than I did and next time her kid spills stuff all over her nice clean carpets not to ring me as I wont be doing it

Some people eh; they want a good job doing but want it for bloody free
