DH always went to Walgreens to get his Medicare covered #8/month. This was the legal side of things. The tests that arrived in the mail arrived in spite of the valid Walgreens ones having already been issued and paid for by Medicare. So Medicare paid for #16 test for two months.
And I don’t think the fraud is over. I received a call just a few days ago (well past May 11th) where the caller informed me 'you are entitled to free COVID tests paid for by Medicare). I had a few choice words for that caller - they hung up.