[Windows Server 2008 Standard] Retail License key does not work. Microsoft Activation phone support team told me that it is blocked MSDN key

Dear Sirs,

I bought bunch of retail boxes of Windows Server 2008 Standard Edition back in 2012.

SKU: P73-03883.

This morning I tried to activate new installation of Windows Server 2008 Standard Edition using one of these keys. Took sealed box opened it and tried to activate Windows Server 2008....

And got an error that says that the key was already used. Called Microsoft Activation service and they told me that the key is from MSDN department and not retail.  And that the key is blocked.

Ok. Took another retail box from same batch and new key worked this time.

From my point of view it looks like affected product key was initially printed on label for a retail box and at a later time it was changed to MSDN key.

Any ideas how to escalate the issue and get a replacement key?

If necessary I can provide photos of retail box.

Any help would be appreciated.

Sincerely,

Vlad