We had the same call today 3/1/22.  Fortunately, we're aware of these folks, as they nailed us four years ago for $1199 for "support."

Today, they claimed our card "on file" was declined for our annual subscription of $399 (wrong) - which renews in the 4th quarter each year and already processed.  He wanted a new card number.  I asked him for our Quickbooks customer number and tax ID, which he could not provide.  I asked him what version of QB he showed we used.  He couldn't answer.  He then asked to link in to our company file to determine why the current card wasn't working.

PS:  Here's the fraudsters' information.  STAY AWAY!!!!
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I told him in unpolite terms to get lost.