Is there a problem if I am 30 days past submission with no acceptance or refund? I paid for the refund to arrive 5 days early too. I can't get in touch with IRS to check

Refund was submitted on 3/9. IRS still has not approved the refund. Only IRS contact I can make is via automated hotline / refund tracker. I am worried there is a problem with my return, and that it will be months before I receive the refund.