Looking for advice. Im a rural carrier with 21 years in. 47k personal vehicle. My route has roughly 50 businesses. I feel it is often tough explaining to these places how we operate and what I can and cannot do. There is one business in particular that has been engaging in harassing behavior for the last year. I have had a dog bite at this location and have a warning in place. It took me a year to get them to move the mailbox to a safe location. Their employees call me lazy, speak ill of me when my back is turned, comments like “why dont you just do your job”. And other derogatory remarks. Everyday they put in a package request that says 5 packages weighing 5 lbs. 4 out of 5 days a week they have NOTHING to pickup. Some weeks nothing at all. My supervisor has ignored the problem and doesnt see an issue. My union stewart says I need to force management to give them a daily dismount. The postmaster has spoken to them about this but they will not stop putting in request. They have no respect for me or the postmaster. I dont feel like I should have to go into this business anymore and be subjected to this abuse or the false/improper pickup request. At the same time I love my job and wish to continue working and providing for my family with USPS. What should i do about this fake package request? Has anyone ever ran into an issue like this? Im feeling very discouraged. I try to treat everyone with respect and do my job fast and efficiently; but this one business is ruining my day to day. Any uplifting comments are appreciated