If you read that forum thread you would know, that many of them already went past various ways to contact Lenovo and even got a "it's been escalated to dev team, but nothing more to say about it" reply there after a few months of complaining (that changed nothing of course).

Lenovo's customer support is a bunch of script-readers.

To be fair, they've responded to my tweets, but only because I have nearly 10k followers.