Well, Mycodes24 website was created on May 8, 2023. If you look at their Contact Us page here - https://mycodes24.com/home/contact-mycodes24/ you will see that it is very strange looking address with numbers 208 and 9515 before the city. Very weird looking address for United States.
Then on the same page you will time display which is in 24H format which is used in Europe:
Also on the second image it shows Trustpilot logo. There is no information on the Trustpilot website about Mycodes24 company:
https://www.trustpilot.com/search?query=mycodes24
Then I put some product in the cart and went to checkout and what do I see in terms of payment options?
You see Coinbase, NihaoPay, PayTR, and Payrexx.
Also, there is identical deal happening on CNet website now through StackSocial:
https://www.cnet.com/deals/get-microsoft-office-2021-lifetime-license-just-33/
And here is a big thread about MS Office deal through StackSocial:
https://answers.microsoft.com/en-us/msoffice/forum/all/has-anyone-purchased-microsoft-office-pro-2021/f6ca0653-cc5f-4ef9-a4ae-4ea91124bd21?page=1
So, the deal itself for MS Office 2021 is basically a scam selling VLKs or used product keys.
I think it is enough red flags.
PS
Forgot to add.
Here is fine print on Groupon page:
Here is caveats print on Cnet page: