You must have a bad PnT - every PnT here puts the stickers away from the labels, since removal of the stickers would damage the label. They also only tape the label to cardboard boxes to prevent damage.

Maybe you should discuss it with the store manager?

I need to go through my cartridges and clean them up. I would suggest following the methods in the Tech and Restoration forum as mentioned previously, as they've been proven to work time and again.