I just got off the phone with USPS. I am told that I do have the correct access and they reset the APIs and sent it via email once again.
I still get this error:
Your transaction could not be completed. Either your credit card information or billing address has problems and cannot be processed. Please return to checkout and try again.-2147219099Rate_Respond.DomesticRatesV2;clsRateV2.UnpackRateNode;SOLServerRates.RateV2_Respond - Missing value for ZipDestination.