Does the Red Cross stalk you for your blood?

I donated last May at a work blood drive. Since then, they have consistently called me twice a day, at random times, from a blocked number. The calls persist, despite telling them several times I will donate when I get a chance, and nicely requesting that they stop blowing up my phone. It’s a mild annoyance that I tolerate since I don’t want to change my number.

Has this happened to anyone else? I’m just curious.

It makes me NOT want to donate blood.