At 29th March of 2017, I got a large order from Suck UK Ltd for the matte black folding cardboard box and corrugated shipping mailing boxes. After two months, they received all the boxes but they told me a bad news as below.
I am very sad to hear that but the important thing is that we have to solve this problem as soon as possible. I explained that how to assemble the cardboard foldable box on the message but they still cannot understand that.
At the same time, I show the video with my boss and production manager and hope they can give me some advice. Finally, I sent some pictures and a video about how to fold the box (As below). They also accept that then. Hope we can work with each other for further orders.