We noticed the mistake 10 minutes after the customer drove the car off.
What about the fact I made the mistake on the invoice? Can he use this against me? What evidence will I need?
My evidence only includes details of the advert print offs from records on the autotrader. Which cannot be amended by ourselves just them clearly stating the £3050. Is this not just an invitation to treat and has he got grounds on this given I have given him a signed invoice for the incorrect amount in error.?