in addition to concerns for her safety because she claimed the tester did not identity herself.

I can understand not trusting someone that doesn't identify themselves as official staff. Any rando could just show up at your door making the demand of you.

test attempt at her home at around 8 p.m. on 3 December 2025” and that she instead signed a refusal form.

Wait, if you didn't believe they were official staff, why would you sign something they put in front of you?

I think this is the confusion.

Tennis players and other pro athletes are required by anti-doping rules to specify where they will be available for a one-hour period each day to give samples for testing.

The female testing agent showed up at Vondrousova’s home outside the assigned hour that the player signed up for that day — in a surprise test. Athletes are required to submit for testing if they are located for a surprise test outside their assigned hour. If they are not found when a tester shows up outside assigned hours, there is no sanction.

She hadn't played since January, and she claims her mental health is not in a good state. Overall it looks like a panic or freakout from her side.

The ruling is justified IMO.