What are skins? A skin is an optional appearance for your equipment. You will be able to equip them on appropriate turrets and hulls at any Rank, no matter the modification (M0-M3).

If you have wasp XT m3 and wasp m0, Your XT item will be removed and replaced with Normal Wasp M3.

Correct, only through the shop

How to get skins? From 04:00 UTC June 7th all XT-equipment will be removed from purchase in the Garage. Skins can be purchased only in the Shop or within the contents of a special offer. Special offer will appear in the Shop after server restart on June 7th and will include: XT-skin for Hornet; XT-skin for Railgun; 100,000 crystals.

See what Ninja said here: http://en.tankiforum.com/index.php?showtopic=372826&p=6520117

Use the QR code to apply to get the invitation.

I'm pretty confident that, its a default warning/alert. Browser I guess

It's not Nives that's deciding the sales, Nives just deliveres the information from developers to us

You can see all the product kits here; https://en.tankiwiki.com/Product_kits

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