I recently purchased keys from GVGMall.com for Windows 10 Pro OEM (https://www.gvgmall.com/microsoft-cdkey/microsoft-windows-10-pro-oem-cd-key-global.html) and Office 2016 Pro (https://www.gvgmall.com/microsoft-cdkey/office2016-professional-plus-cd-key-global.html). The way that the key was delivered to me does not look legitimate (screenshot below). I am thinking they resold me a volume license key/MSDNAA key or something similar and marketed as OEM. I then called Microsoft sales and asked them about GVGMall and I do not believe they understood what I was asking (probably wrong department to speak to). I am about to issue a chargeback to my credit card company, but want to see if it is legitimate or not and if not using this to strengthen my case when I issue a chargeback and make everyone aware if this is a scam or not when they search the site.
Thanks in advance!