@AlyenGyrl
Have you tried installing Shazam app https://www.shazam.com/ on your mobile device and then using it when this ad shows up?
Easiest way when trying to track down these jingles or quite can't put your finger on it. If you get no result from Shazam, usually just means original content created just for that ad.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102