I had some obvious rust showing up on the bumper of my 2014 Frontier. I called the Shrewsbury MA Ziebart to ask if their rust treatment would help. I was assured it would and told to make sure I should also have them apply their anti rust undercoat. When I dropped off my truck, I asked the front desk personnel again if it would help, and again I was told yes. So 3 days later when I went to pick it up i was dismayed to see the the rust was still there. When I went in to complain, I was told “we’ll onviously it won’t remove the rust from there.” When I asked how we could remedy the situation, I was told I could try to see if it was still under warranty (which it wasn’t). I emailed Zeibart customer service, to which (surprise, surprise) I got no response. Now, 4 months later, I go to wash my truck and can see that exactly on the line where my truck was put in the “anti rust bath, my 4 year old paint is bubbling up. Never use this company.