SPAR don't need your business

I visited Mayville SPAR today as a regular customer to transfer money. Ernest promised me on a previous occasion that after registration, your drivers license should be sufficient. Suddenly he changed the rules and was too lazy to assist me. He tried several excused like the system is offline, etc. He really treated me, as loyal customer, with disrespect. How can one support MAYVILLE SPAR with such unprofessional personnel, Please send ERNEST on a customer service course.