Unknown caller, has called more than once, never leaves a message.

cld back, they offered me a loan

Wells Fargo, I once had an account with them. Probably offering me a loan BUT they first asked me to confirm my mailing address, etc. which I refused.
I investigate economic crimes and a bank such as Wells Fargo should not be asking people THEY call to provide info.
Its one thing the client is the one calling the company, but not the other way around.
That's how people get scammed... criminals posing as RBC, Bell, etc. and first asking to confirm ones mailing address, DOB, etc.
Wells Fargo should know better.

receiving unwanted calls which ou answering machine takes.  No message left.

Just got a call from the same number no message left

This is Wells Fargo.They keep calling but they never leave a message.