"The IRS is overwhelmed presently'"
That is correct. There is nothing you can do. Show the clients this
IRS Operations During COVID-19: Mission-critical functions continue | Internal Revenue Service and tell them they and 18 million others have to wait.
My POA is recorded, but apparently the IRS does not have my address. Practitioner Hotline was able to verify this, but had no solution. Just let the clients know the IRS will pay them better interest on their refund than they could get from a bank. They will get their refund as soon as IRS finishes processing all of the 2019 returns that have yet to be touched.
Here's wishing you many Happy Returns