Dear Liz: My mother received a stimulus payment on behalf of my late father in April. Per an IRS directive on May 6, I returned the money to the IRS. As of Aug. 1, the check I sent has not been cashed. I have made two phone calls to the specific IRS phone number that deals with any stimulus payment issues and both times have been told, “Don’t worry about it.” Do you have any suggestions for us?

Answer: Yes. Don’t worry about it. And stop calling.

The IRS is dealing with a tremendous backlog that accumulated while its operations centers were shut down because of the pandemic. Although the centers have reopened, the pandemic is still affecting the agency and probably will do so for some time.

The IRS recently warned that “live assistance on telephones, processing paper tax returns and responding to correspondence continue to be extremely limited.” The IRS will cash the check eventually; your calls won’t speed that up and will unnecessarily tax an already overwhelmed system.

In the future, consider using the IRS’ online payment systems. They’re safer than sending checks in the mail and you’ll get instant confirmation that your payment was received.