Gypsy Sisters

"Gypsy Sisters" star Mellie Stanley got caught up in another alleged coupon scam -- only this time it appears to have crossed state lines ... TMZ has learned.

Law enforcement sources tell us Stanley was arrested Monday night in Indiana based on warrants for her arrest out of Tennessee. She was wanted on seven counts of felony criminal simulation -- basically, cop speak for creating fraudulent coupons, we're told.

Sources say police in Clarksville, TN were alerted to a coupon scam Mellie was allegedly involved in back in November. We're told she tried making a $2,412 purchase at a Toy "R" Us there, but fled suddenly. Sources tell us she had 7 coupons that were somehow made to seem redeemable for $300 each. The cashier was suspicious and called cops.

Our police sources tell us the TN authorities were already on Mellie's tail for similar crimes in at least 4 other states. We're told police believe Mellie is part of an organized theft ring that makes counterfeit coupons, which they then use to buy gift cards to make illegal purchases at a variety of stores.

We broke the story ... she was arrested in Kentucky for a very similar alleged incident back in December ... allegedly trying to make off with $18k worth of Toys "R" Us gear.

1:10 PM PT -- Law enforcement tells us Mellie allegedly pulled off a massive coupon scam at Toys "R" Us and Babies "R" Us. Authorities say Mellie and her husband used counterfeit coupons to purchase $18,000 worth of gear at both stores.

Both of them were hit with the same charges and are being held on $13,000 bail.

"Gypsy Sisters" star Mellie Stanley revived her old role as the family's black sheep ... after running afoul of the law again.

Mellie was arrested Thursday morning in Lexington, Kentucky on a warrant. She was booked for theft by deception, criminal possession of forged instrument and unlawful access to a computer ... this according to docs obtained by TMZ.

It's unclear exactly what Mellie was doing, but we're told she allegedly committed the crime a couple weeks ago when the warrant was issued. She'll be arraigned later today.

It's not her first time running into trouble. In 2014 she and her sister were reportedly busted for running a coupon scam at a Target in North Carolina. Mellie's then-husband was also arrested back in 2015 after a heated argument between the couple sadly led to Mellie's puppy being killed.

Joann Wells -- one of the stars of TLC's, "Gypsy Sisters," -- was busted in North Carolina after she allegedly stole thousands of dollars from a Target.

Officials from the Cary PD in North Carolina tell TMZ ... Wells befriended two cashiers at a Target last December to aid in her fraud. We're told the cashiers ran fake bar codes on merchandise, forced expired coupons, and cashed gift cards -- and Wells would share the profits.

We're told the scheme took place over a 10 day period ... and racked up a total of $14,700.

A warrant was issued for her arrest, but Wells turned herself in last week and was charged with obtaining property under false pretense, and felony conspiracy.

She was later released after posting bail. Both cashiers were also arrested.

TLC had no comment.