Refund has taken over a month. How can I make sure all is well with the filing of my taxes?

Hello. I filed on 4/15 used paid for your extra service to have a professional help me double check and walk me through everything. I still don't have my refund. It's never taken more than 2 weeks. Been checking the app everyday and calling the IRS but they are never available and the app just says processing. Is this normal right now or could there be something wrong with my tax filing?