Has anyone purchased Microsoft Office Pro 2021 from StackSocial

I have 365 that renews annually for $99 for up to 5 computers and thought this looked like a good deal. I purchased and installed StackSocial's single computer license with no problem but removed it after reading comments here stating that MS does not sell a single computer license. StackSocial assured me that their license is legit, but I asked to return it under their 30 day guarantee. They didn't give my money back but gave me a site credit. This is the single license sold at MS https://www.microsoft.com/en-US/microsoft-365/p/office-professional-2021/CFQ7TTC0HHJ9?activetab=pivot:overviewtab

NOTE OF WARNING - I'm still trying to get my money back. I paid via Venmo and the next day had a fraudulent charge on my bank debit card that I haven't used in nearly 10 years other than linking it to Venmo and possibly one or two other sites that require debit card authorization.

This was their initial reply before offering me a 30-day store credit:

Hi Anne,
 
Thanks for reaching out to us! We totally understand that you have questions about the Microsoft Office lifetime license.
 
We are a marketplace/retailer.  We obtained this product from an authorized reseller of Microsoft Office.
 
If you are having any redemption issues we can actually provide assistance or a replacement product key so that you can use your purchase. 
 
Thanks!
 
Best,

David L. 
Customer Support Team Member

Ron Barker - I contacted StackSocial to return the license I purchased after reading your comments but you are incorrect. MS does sell a single license. StackSocial assured me that their license is legit, but I asked to return it under their 30 day guarantee. They didn't give my money back but gave me a site credit. This is the single license sold at MS https://www.microsoft.com/en-US/microsoft-365/p/office-professional-2021/CFQ7TTC0HHJ9?activetab=pivot:overviewtab