After you file

The status of my return on the IRS website is "Your tax return is still being processed" and underneath that it says "A refund date will be provided when available" I'm concerned because I haven't received anything from the IRS and haven't been able to get anyone on the phone.  My return was accepted by the IRS on 2/15/21. I've spoken with other individuals who filed their returns after this date and have already received their refund. What could be the issue?