doesn't seem like this is a "takedown notice" of any legal kind
from the company homepage: "BrandShield’s robust technology scans the internet, analyzes potential threats and detects phishing threats, online brand abuse, TM infringements and counterfeit sales. Our experienced and skilled takedown experts remove those threats relentlessly."
If they were lawyers they probably wouldn't need to use phrasing like "experienced and skilled takedown experts"
from the company homepage: "BrandShield’s robust technology scans the internet, analyzes potential threats and detects phishing threats, online brand abuse, TM infringements and counterfeit sales. Our experienced and skilled takedown experts remove those threats relentlessly."
If they were lawyers they probably wouldn't need to use phrasing like "experienced and skilled takedown experts"