Call blocker might be of some help. Also don't pick up on numbers you do not recognize, or where there are caller IDs that seem odd. Or where there is no caller ID. Not a perfect solution, but it can help.
Caller I.D. says BNK CRD ADVOCAT
1-339-201-9313... EVERY DAY!
How do I BLOCK this & another one I keep getting:
BANKCARD RELIEF 1-970-339-1382.
This happens only on my landline phonenumber.
HELP..... ME....
Get NO MORE ROBO...blocks 99% of these types of calls! It's FREE and works on just about any phone # Scammers call ur phone rings once and then if no more robo detects a scam # it's blocked! I've had it for a while now & it works Great!