Whether it’s illegal or not doesn’t matter.
NEVER donate to anyone that calls you. NEVER.
.
YES, it’s why we just got my 91 year old MIL a new Jitterbug phone, with a new number, and she’s moved to a new address....she answered every call for money..not with a lot, but regularly sending checks. Luckily she was smart enough not to give her credit card over phone, which they asked for. aaagggghhhh.