I am glad you got that straightened out finally.

Most pharmacies will ADVANCE you enough medication when you are OUT to last until your refill is granted, or a dosage change is needed to be done, or an insurance snafu occurs.

They will then deduct the tablets from your next fill.
For maintenance meds like seizure drugs, diabetic medication,
blood pressure, and heart meds, this is done frequently.
Less likely for opiates or benzos.

So when you run into a snag, just request an advancement like this. It is done no charge most of the time.

For mail away patients, it is possible to get an emergency small fill at a local pharmacy. Depending on the problem you may have to pay a small copay, or not. If the mail away has made an error they typically waive any fee. This however is time consuming at the local level, so expect to wait perhaps a day while all the phone calling is done. It can take alot of time to do.