Went in McDonald's in ferinand Indiana and they messed my order up and there phone number is busy how do I get my money back

I'd call the 800 number, or bring food back for replacement. Now days they wanna verify with receipt and wrong food return to exchange.

Always try to check your order before leaving to verify it is correct, so you can take back while you are still at the restaurant. If that is not possible, then call the specific restaurant like you are trying to do. If you can't get through to the restaurant by phone, then call or email corporate headquarters. The phone number and email address for customer service is on the McDonald's website.

There should via 800 number on the packaging and your bag

Yes

Call the headquarters