www.picanova.com review: I didn't get my canvas and need help

I sent my photos to the company www.picanova.com for printing. As well as I ordered the canvas. The seller warned me that they would send two separate parcels. One with photos and the second one with canvas. He sent me photos after 7 days and the canvas was also on its way. I was so shocked after 2 weeks, because I haven’t received the canvas. I emailed the seller hundreds of times, but it was unsuccessful.