I had 2 of these just this week. Disney+ sent an ESPN ad with no way to unsubscribe, despite my having all marketing emails turned off. Their chat rep laughably insisted it was not a marketing email, just a way to “help” people use their services. It’s very kind of Disney to be looking out for me.
Best Buy sent me a marketing ad with a $5 coupon (lol) attached. All marketing emails were disabled with them too and again there was no way to unsubscribe.
Both problems were easily solved by deleting my accounts.
Some problems with that: