Yes.

Many companies will send legal letters through offline lawyers. If there is any selling of counterfeit goods, it can be resolved through a lawyer's letter or through legal channels. However, low prices, unfair prices, etc. do not directly violate the law, and the legal lawyer's letter has no actual effect.

A lawyer's letter is generally issued by a lawyer entrusted by the trademark right holder to the infringer, requesting the infringer to stop the infringement and compensate the right holder for losses.