FortiEDR licence when exchanging reseller

Dear Forti Team,
dear community,

is a reseller (here: Matrix42) able to provide its clients a real serial number of the FortiEDR licence they use?

In detail, the reseller stopped selling the FortiEDR service which is still used by us.
We're using a reseller-primed URL to get into the Management Console.

Unfortunately the service will end december 31th which took us by suprise as the reseller claims to have informed us - but just didn't.

So in the need of finding a new reseller we were asked to provide a serial number of the FortiEDR but since the old reseller can only provide something like FEDR000000000123 (and 123 stands for the only three "individual" numbers) we are a bit lost.

Does that look like a real serial number? And if not can we advise the old reseller were to look in his own management console?



Best regards 
Rico