Complaints about Phone Numbers800-906-####

i have received a call saying " ambulance bill " for service provided on 8/10/21 at 12:35pm

Did not answer. No message.

Called to "verify" that it was ok to list my name and phone number as "second contact" for someone.

Rang then hung up.

Called and left message to call back becuase services were going to be disconnected by 2:15pm. When I called the number back for more info as this is my business line, there was an automated message from Entergy electric company and asking english or spanish. After pressing 1 a person with a foreign accent answered and began asking me my account number. When I began questioning him back about this call not being legitimate, he hung up.