After you file

My return has been sent by mail. I checked on IRS webpage for my refund status. It says "Action Required" and "We couldn't process your refund because your name and SSN dont match our records..." I checked that the SSN is correct on my tax return. However, my last name is written differently than the IRS record. I also called IRS and they confirmed that my name is spelled differently in their records. The lady from IRS then connected me to somewhere else to confirm my identity. I was waiting for an hour on the phone but the call was eventually interrupted. Should I just call again or is their another way to handle this?