“Reasonable” is doing some heavy lifting, but i just spent another 10 minutes hunting through all the in-app settings menus I could find and I haven’t found a way to disable these alerts.

They certainly don’t want you to disable deal notifications and make it very difficult to do so.

It’s like the old quote about fire extinguishers: if you don’t know where one is, it doesn’t exist. If a reasonable effort cannot find the setting, it doesn’t exist.