Not true. There’s a principle called “first sale doctrine” that basically says that IP rights are exhausted in the first sale of an item. So, as long as they are buying legally made copies of the product, then the company has no legal recourse. You can’t stop someone from buying something in country A and then importing it into country B and reselling it.

In the US most famously decided in the Kirtsaeng v. John Wiley & Sons, Inc. decision. Publishers often charge significantly different prices across different countries for their owm books and this basically prevented them from blocking parallel imports.