A tiny concern proprietor said she was shocked and heartbroken to find her paper designs being sold connected elephantine online retailer Temu's website without her knowledge.
Anwen Roberts, who owns plan institution Draenog, said identical versions of her Welsh connection products appeared connected the Chinese-based tract aft being copied without permission.
Ms Roberts said it was an added unit for tiny businesses similar hers successful Caernarfon, Gwynedd, erstwhile she was trying to marque a living.
Temu, which has present taken down the cards from its site, said it acted "quickly" erstwhile "potential infringements" were reported, and its extremity was to support brands and creator rights.
Temu, which is owned by the Chinese elephantine PDD Holdings and it was valued earlier this twelvemonth astatine $150bn (£117bn), is simply a marketplace wherever third-party sellers connection their products straight to customers.
Ms Roberts said it was a "massive shock" to spot her enactment and designs being sold online without her knowledge.
"They were identical and they utilized the designs we person online," she told Newyddion S4C.
"It conscionable breaks your bosom a spot to cognize idiosyncratic has utilized your work, enactment it retired determination and is perchance making wealth from thing that I arsenic a tiny concern person created."
Among the cards sold done Temu was nadolig llawen mam a dada - merry Christmas mum and dada successful Welsh - featuring 2 hedgehogs chemoreceptor to chemoreceptor portion snowfall falls.
Both the colouring, greeting and designs were the same.
The Temu tract paper work nadolig llawen mam a dada portion Draenog's is mam a dada nadolig llawen.
Another Temu tract paper showed a ample balloon with penblwydd hapus - blessed day - written connected it and tied to a dachshund, which was identical to a Draenog card.
Temu, which sells everything from apparel to electronics and furniture, launched successful the US successful 2022 and aboriginal successful the UK and the remainder of the world, and ships to astir 50 countries.
"They tin conscionable instrumentality hundreds of thousands of images, instrumentality them disconnected the internet, make immoderate text, bash it truly rapidly and they miss retired the spot of weeks and months and hours of moving with tiny businesses similar I bash and putting a batch of clip and vigor in," said Ms Roberts.
She said the onus connected radical similar her to study issues was frustrating and time-consuming arsenic determination was "also the clip of having to way them down and knowing your rights".
What tin companies bash to support their rights?
UK authorities assemblage the Intellectual Property Office called IP infringement some a "local and planetary challenge" and said it worked with others to "help tackle the menace it poses to businesses and consumers".
The IPO said it engaged with large e-commerce stores to region goods which infringed rights oregon were counterfit. It besides spoke to them to "permanently region persistent sellers from their platforms" and "published guidance to assistance traders support their IP rights connected each large e-commerce stores, including Temu".
The IPO said: "If radical judge that their IP rights are being infringed, oregon fishy specified goods are being offered for merchantability connected e-commerce sites oregon societal media marketplaces, they should marque usage of the tools these sites supply and ever study this.”
Fflur Elin of the Federation of Small Businesses (FSB), said its probe indicated 1 successful 5 tiny firms experienced copying of their enactment erstwhile utilizing the biggest platforms.
"This is highly challenging and galore often consciousness powerless erstwhile taking disputes to larger companies," she added.
The FSB wants the UK authorities to "implement a strategy that allows quality solution betwixt the larger companies and the tiny businesses and that is paid by a mechanics that raises the fees from the large platforms".
Temu said it investigated this lawsuit and "removed the infringing products that were found"
In a connection it added: "For sellers who repeatedly interruption these rules oregon perpetrate superior infringements, we permanently prohibition them from the level and region each of their products.
"We person invested heavy successful IP [intellectual property] rights protection, expanded our IP team, and introduced an IP portal and marque extortion centre to summation the effectiveness and ratio of handling infringement claims.
"As a result, we resoluteness implicit 99% of takedown requests wrong conscionable a fewer days, which is faster than the manufacture average."