Well also if something is supposed to be tamper evident they have a (usually legal) incentive to make sure it stays on a all times. They don’t do the testing to find the best sticker adhesive or what is easiest for the consumer because at the end of the day they need it to do one job. You could easily find the best adhesive for the material you are using that stays on very well and can be removed without leaving residue or damage behind. You may have to pay 2 times as much for a better sticker anyway. Not worth the time

Be definitive. Don’t beat around the bush. It sucks, it hurts, but dragging it out or giving them hope of continuing the relationship just makes it worse for everyone. Make sure you are sure with the decision as well