call cell phone didn't leave a message

keep getting calls from this number and when I answer or answering machine answers they hang up

Calls daily, when I answer they hang up, when I call back it rings twice then goes busy

Don't know why they are calling. No messages just constant calling

asks for lefemme -- There is an organization, Le Societe De Femme. They had an account with Wells Fargo, it is a benevolent organization.

called back tha number and got no reply. told the lady that her company doesnt do the debt for this company i had the debt. key word had. and she flipped and started screaming. called again a hour later maybe to talk to someone different and got nothing. no ring nothing. does anyone no anything about this?Ive been trying to get info on it and all im getting that its a scam? does anyone know more? they told me they were Seneca Financial Group, what did they say to anyone else?