How was the USPS's free COVID-19 test program implemented?

The launch of CovidTests.gov, a website where households could order four free USPS rapid antigen COVID-19 tests, was announced by President Joe Biden in January.In contrast to other complicated government applications, ordering free tests from the Postal Service was simple. In March, the website added four more free tests and added eight more in May.The short form that asked for your name and mailing address took less than two minutes to fill out, and the tests arrived in about a week or two.A toll-free phone number was available for Americans who lacked internet access or had trouble ordering online.
A recording of the phone conversation at that COVID-19 hotline reaffirms that orders for COVID tests have been canceled, but it also mentions that people who are blind or have low vision can order more accessible COVID tests.However, those tests, according to a representative on the hotline, are no longer available for purchase.