Real DIY and the Disappearing Amazon Snow Shovel

I know this is locking the stable door after the horse has bolted, but we ordered a snow shovel from Amazon, mainly because there was no way on earth we could get out of our street to buy one, at the beginning of December. We were assured that the seller, Real DIY, had dispatched it and it would no doubt get here some time. I first contacted Real DIY through Amazon on 20th December to tell them that it hadn't arrived. They didn't bother to reply.

We're now at a stage where every single thing, including things ordered from other sellers on the Amazon Marketplace at a much later date, has now arrived. So, I tried to send the sellers another e-mail via Amazon this morning. I had an almost immediate response saying that they couldn't pass it on as "this seller has left  marketplace". I know that I'm not alone as I know other people who ordered the same product from the same seller and it hasn't arrived either.

This is, thankfully, the only bad experience I've had with Amazon in many, many transactions, and we should get a refund through their a-z guarantee. However, you only get 5 lifetime claims so I'm not impressed at having to use one of them like this.

Has anyone actually had a snow shovel from these people arrive?