Snapchat notifications

I bought a Series 11 a couple of days ago as my first AW, and I couldn’t be happier with it.
The only problem I have is that I receive Snapchat notifications even though I turned it off.
I deleted the Snapchat app on the watch and turned off Smart Stack and regular notifications, but I still get them, and it’s starting to annoy me a bit, lol.
Any advice?