I'd speak to the new owner explain the situation I wouldnt ask for payment for the previous clean but I would try and gain their custom, either way I'd dump the existing customer, just makes it sweeter somehow if your still cleaning for the neighbour.
Thanks for that guys, seeing this guy isn't easy, he's hardly ever there, whats more the house is 25 miles away.
That's a great idea about seeing the new people and dumping him, brilliant. If he has to get someone else to clean his windows it's going to cost him, it's a 3 storie town house, and the guy would have to come just to clean his.
Here is a letter I have drafted, but I will sleep on it.
Dear Mr xxx, Thank you for your cheque for £18.00.
I am disappointed that you did not send the £36 owing.
Our arrangement was that I cleaned the windows at number 14 and 15.
If you wanted to change this, I should have been informed.
I was not to know that you no longer had an interest in number 14.
If you had sent a cheque for last month’s clean, you could have informed me about the change, you didn’t do this, you let me go back this month and clean the windows again, I did this because I always trusted that you would pay me, this is just not fair.
You suggest that I seek payment from the present occupiers; I don’t know these people and have never made an arrangement with them.
The onus was on you to inform me of the change in our arrangement,
This you neglected to do.
I’m sorry but under these circumstances I will not clean either 14 or 15 again until this matter is resolved.
Yours sincerely