What a put off!!

I’ve recently purchased gifts from Pandora in which my full order was not delivered upon. I’ve tried contacting them through all possible avenues to no response from them. The number provided does not exist. I’m more disappointed as it was gifts for ladies going back home from their holiday which was left incomplete. I’ve emailed, messaged privately on their website and private messaged them through social media. I don’t know what else to do except to make people aware. Such a huge brand and yet no getting through to them.