Who called from 4014008477

Has called over a dozen times in two days during daytime hours while I am at work, get a few second voicemail of static nothing else

Bought a phone for my parents and they tell me they get a call from this number every day. Total harassment. I believe they have spoken to someone on the other end, told them they were not the person they were looking for, and they basically said "we don't care" and fully intend to keep calling.