This is why you spend the time and the dime by working out a detailed contract. Any deviation gets a change order and you charge for that. If they are going to be a pain, they are going to have to pay. The way you did it sounds like a nightmare.
Senior member of the Brethren
Weber Platinum Kettle, Weber OTS, Meco square grill, ECB, UDS, WSM, a cool fold up camping grill, Blackstone flat top camping stove, The MOAB, and now the proud owner of a YS640, MOINK.
Pitman for All Things BBQ cooking classes.
Smoke on Brother KC
Father of the Fatty (the name) 4/20/04 on the BBQ Brethren with inspiration from Brother parrothead.