captain_spalding said:

Kingy said:

party_pants said:

It all comes down to relationships and goodwill. Do you need to have an ongoing relationship with this supplier on an ongoing basis in the future?

I can get the same product from Perth cheaper, and get it trucked down here by the bloke who owns the yard where all my stuff is.

The customer varied the terms of the contract, expanding the amount of work beyond what had been quoted and agreed on. And, she did this without consulting you.

Whether or not she pays for the additional product, she surely owes you for the 6 hours extra work.

This is where your solicitor comes in.

The customer is lovely, and thought that the extra product was what she was to pay for, not knowing that extra product had been delivered.