I don't tip people who deliver food now - AITA?

For two years I asked my food delivery service repeatedly to have their delivery people ring my doorbell when they left food, and they said they would - and my doobell was NEVER rung despite repeated requests and putting it on my profile. All that time I left generous tips, but I finally got tired of tipping people who refused to honor a very simple request. So now, they leave the food, my recently upgraded security system now tells me they approached the door, and they get NO tips from me. Still no use of the doorbell.

AITA?

I don't tip people who deliver food now - AITA?
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