This shop is not selling goods normally but playing pyramid scheme, which is a cheat to customers, it is just a matter of time being disclosed about the bad business practices.
Examples (Wiktionary)
Mandarin
因此它们便能够大量地推销它们的商品,把中国变成它们的工业品的市场,同时又使中国的农业生产服从于帝国主义的需要。
因此它們便能夠大量地推銷它們的商品,把中國變成它們的工業品的市場,同時又使中國的農業生產服從於帝國主義的需要。
yīn cǐ tā men biàn néng gòu dà liàng de tuī xiāo tā men de shāng pǐn , bǎ zhōng guó biàn chéng tā men de gōng yè pǐn de shì chǎng , tóng shí yòu shǐ zhōng guó de nóng yè shēng chǎn fú cóng yú dì guó zhǔ yì de xū yào .
Thus they have been able to dump their goods in China, turn her into a market for their industrial products, and at the same time subordinate her agriculture to their imperialist needs.
Mandarin
他们只讲扩大红军,扩充运输队,收土地税,推销公债,其它事情呢,不讲也不管,甚至一切都不管。
他們只講擴大紅軍,擴充運輸隊,收土地税,推銷公債,其它事情呢,不講也不管,甚至一切都不管。
tā men zhǐ jiǎng kuò dà hóng jūn , kuò chōng yùn shū duì , shōu tǔ dì shuì , tuī xiāo gōng zhài , qí tā shì qíng ne , bù jiǎng yě bù guǎn , shèn zhì yī qiè dōu bù guǎn .
They talk only about expanding the Red Army, enlarging the transport corps, collecting the land tax and selling bonds; as for other matters, they neither discuss nor attend to them, and even ignore them altogether.