Who called from 4344804206

Caller upon answering says "goodbye" in a real nasty tone, then hangs up

called my cell phone on a sunday..no message
who is this?

I just got a call at 2:16PM EST. I hear a rough "goodbye" and it hangs up.

Redialing gets me a busy signal. Who is this?

Got a call from this number, answered the call, and a rude female voice said goodbye.  Called the number back, 434-480-4206 and got a busy signal.  I then called 434-480-4200 and a women answered, "Van Rue, how may I help you?.  The calls are coming from Van Rue Credit Company (collection agency) in Skokie, Illinois.

the same as (auto repair) when i picked up and said hello a female in a rather bitchy voice said (GOODBYE) and calling her back gets a busy tone or no answer