I have two bits of advice
1 Ignore the bully and carry on, if you want a wee bit of peace change your business number and also tell him that you have a lot of bampot friends ( us on the forum) who will come down and stand up to him behind you, although it will not be easy the bully as all bullies do will soon leave you alone and pick on somebody else weaker.
2 Or and here i make the pledge of £10, we on this forum will raise the £900 for you to walk away. Many people out there know i am good for it due to past examples. With the amount of bragging of daily earnings that goes on here we can easily donate this money.
I propose we send it too someone of good standing whom we all know, whether you buy from him,agree with him or disagree with him i believe we all respect him. Glyn H will you collect and handover the money to one of our fellow window cleaners in real need? Let Stu,one of our own sleep soundly at night, donate some money and let us all learn a lesson from this. There is no quick fix to success, hard work hard work hard work and then some more hard work.
Rare very rare that anybody ever bought success
Good luck and sleep sound Stu