@Venmo Nah. I've already tried emailing Venmo support about this problem multiple times. It has been going on since last year; I've accepted that this is deliberate at this point and I'm just warning others as publicly as possible.
Every time the @Venmo app sends me notification spam, despite having it turned off in settings, I'm reminded that Venmo refuses to accept that no means no. It happens so frequently that I am telling everyone to stop dealing with this shady company.
Guessing at the motivation, I think it's an attempt to artificially increase platform "engagement" by allowing trolls to pile onto people who would have blocked them.