Wow summerwind, I'm impressed that you know so much about me. I would be unhappy about the covering if it showed up that bad, but I'd fall a bit short of screaming bloody murder. I'd spend some time with the iron and heat gun and have it tightened up in a little while. If that process ruined the covering like it did with the OP, I'd expect replacement covering.

And I have seen H9 covering be wrinkly too. An Alpha showed up at the field on training day once that was so wavy that I would have been scared to fly it. It did fine though, and some of us explained how to tighten it up later. It's a fact of life with ARF's that they are going to get wrinkles during transport and also probably leave the factory with a few. I'd prefer that to them shrinking the covering drum tight and using up all the shrink so that I can't fix it when it loosens up later. The OP's plane was shoddy work, but nothing to get too upset about.