“Between stimulus and response there is a space. In that space lies our freedom and power to choose our response. In those choices lie our growth and our happiness.”
If this is winding you up then it is because you are letting it. It's a difficult concept to grasp but the frustration you are feeling is a result of
your reaction to it - not your response to it.
You are right that they are the lowest of the low to do this but then plenty of thieves walk into small businesses every day and help themselves to stuff worth a damn sight more than £14.00. A butcher friend of mine got stung recently by a customer for £8,000.00 - bang, they closed down and no sign of payment ever coming. The 'Takes a thief to catch a thief' programme last night showed how shoplifters mass steal and show no remorse.
If you are going to go down the letter route, then, as Dazmond says, just get on with it - but you must treat it as a normal part of your business and take emotion out of the equation. Otherwise you will keep getting stressed - when you know they have received the letter - how will they react - will they keep you waiting - you'll keep checking Paypal and bank statements to see if they have paid. And after all that if they choose not to pay you are back in the same position you are today - then you might get more stressed thinking whether you should take them to court or not.
I too have people that don't pay for the service I have provided - it used to really wind me up but it got so bad I had to change my outlook or that frustration would have turned to anger and the problems that can bring; I even had one recently that outright told me to my face he was not going to pay me.
But all it has cost you is your time - yesterday I cleaned the wrong house a couple of doors down from the actual one - all I could do was laugh it off and I do the same with bad payers - you will meet many of these types of people and you must choose how you respond (not react) to this stimulus.
Cheers, Tom
