Business ProfileforB & B Appliance & TV

I called to have my dishwasher 2/10/22 fixed and gave them an estimated date of purchase of early March and was told it will be under warranty. Actually found my receipt for proof of purchase date of 3/16/22 and again was told would be under warranty. They came mid March to fix the dishwasher and again I showed them my receipt and was told it should be under warranty. I get a bill later saying its not under warranty and confused I called and was told the date of purchase is not correct despite having a receipt. I've tried calling B&B and whirlpool so many times to get this figured out with no luck. I have told them what whirlpool has told me and that they "should be fixed" but still getting statements from B&B without communication that I have requested to resolve this. I have sent multiple emails requesting if this has been resolved and have called again asking for a resolution with no return calls. I'm not sure what else to do at this point if they can somehow clear the confusion with whirlpool since they deal with claims more than I do.