Such rudeness and incompetence

This company wrongly invoiced me. When I suggested that, as a result of their mistake, the report should be released immediately while the fresh invoice be issued and I arrange additional payment, I was accused of not wanting to pay the balance and told I should have picked up their error. After paying the additional amount, I waited more than 8 working hours to receive the report. After sending numerous reminders I was asked what my problem is.