Failed Logitech SE?
So I bought A serial Number from a seller on MPGH for Logitech G933
This is what they replied
All the information that you sent was great in moving the case along, but the serial number provided is not in our system. The serial number should be located [Under left earphone pad]. If you could take a clear picture of it and send it that would be great. Also if could you get a copy of the original receipt to show the actual purchase date and send a clear picture or screen shot of it that would help out a lot also.
I'm not too sure but either you were given a bad SN or you need to just follow through on it using photo manipulation.