One woman has been charged with "perpetual fraud" after deliberately removing Zara's clothing tags – and placing them on older items that she returned to the store.
Enata – identified only as "Tania MA" – is aging in her early 30s.
It struck a six-month prison sentence and a lifetime ban on Zara stores in the Aragon region of Spain, local media reported.
A Spanish court recently heard a woman take out a scam by buying new clothing from a popular retailer at a variety of stores before removing the markers and putting Zara's previously worn items in her wardrobe.
He would then go to the Zara stores and ask for a full refund, claiming the items did not fit properly or were otherwise inappropriate.
The woman has been cheating for over 15 months and has been cheating so many times that staffers have finally been caught and reported their suspicions to the authorities.
The judge who convicted the woman said her wardrobe was so sophisticated that she realized which barcodes fit certain colors of clothing.
"The fact that both the interior and exterior labels match and are precisely applied to similarly colored garments shows the false mechanism and desire to benefit, so that she restores her wardrobe at no cost," the judge said, according to The sun.
She was careful never to ask for a refund, because she needed a manager to authorize the process – and because they would have "more knowledge of the stock market, (they) could spot the returned item not matching the markings".
Zara, a Spanish fast fashion company, is the largest company in the Inditex group, the world's largest clothing retailer.
It is worth nearly $ 19 billion with stores around the world.
According to The mirrorInditex "reportedly showed six fraudulent operations between October 2017 and March 2018".
However, it is not the only brand that prevents serial returnees.
Earlier this year, many retailers – including the online fashion center Assos – revealed that they would update their return policy in the future and potentially blacklist perpetrators.
According to the amendments, the return period was extended from 28 days to 45 years – but the serial returners and those who returned the items after they were delivered were disclosed.
"We know that easy return is one of the (many) reasons you shop with us, so we have increased the return time from 28 days to 45 days," the email said to customers.
"If you return something within 28 days, we will return it as normal … and after that (up to 45 days), you will now receive an Assos gift voucher for the amount spent.
"We also need to make sure that our yields remain sustainable for us and for the environment so that if we notice an unusual pattern, we can investigate and take action. It is unlikely to affect you, but we wanted to give you a head.
"If we notice an unusual pattern of return activity that is not sitting properly: e.g. we suspect that someone really carries their supplies and then returns or orders and returns cargo – way, wait longer than even the most loyal Asos customer would order – then we may have to deactivate the account and all associated accounts. "