In a nutshell, all resellers have been contacted with a link to the new Broadcom page with the details. If they have not done that, ask them to do that.
From what I have been told, all existing customers has their licences extended up to 28th February 2020 so you should be still covered until then. Broadcom is still going through the huge backlog, but should see the backlog cleared in the next 2 weeks time and the reseller partner will be able to renew the maintenance before the extension actually expires.
So, if I were you, I'd go back to your reseller.