We switched insurance companies about 2 years ago. Our renewal date was 4-28-22, and at the end of May the insurance company asked us for an audit of pervious 12 months in sales. I submitted that and our sales were up from the previous stated annual sales. We received a bill for the increase which I understand, however we now also are being billed an increase for 4-28-21 thru 4-28-22. So basically, they are billing me after the policy has expired. I have spoke to our agent and he said that is how it is. Has anyone gone through this, we have never had an audit done thru our insurance in 15 years.