This was also answered in your duplicate thread an hour ago at the link below, where there are some additional tips.
https://ttlc.intuit.com/community/after-you-file/discussion/i-have-not-received-my-tax-return/01/145...
You may not be able to reach the IRS call centers due to the Coronavirus situation.
The IRS says on their website:
"To protect the public and employees, and in compliance with orders of local health authorities around the country, certain IRS services such as live assistance on telephones, processing paper tax returns and responding to correspondence are extremely limited or suspended until further notice."
