I have been calls from this number claiming I owe money to a net cash. Talking about taking me to court. When I started questing her she hung up.

Did you find out if this was a legitimate company ?

How do you know it was or is a scam ?

From Brenda's comment----IF there really were felony charges against you, you would NOT be warned that a summons is coming.  Also debt is CIVIL and is not a felony (and there is no jail or arrest that will happen).  Note jd's comment below yours - they "hung up when I started to question her".  Would a real, legitimate company do that??
The Atlanta Georgia area is loaded with bottom feeders.  Nothing that is MAILED and in WRITING equals northing but threats (which are also illegal).

Yes.  They are trying to find those few people that will panick and pay them over the phone and by the time they realize it is a scam it is too late.