No but this rings a bell of sorts, it could be an ongoing, rolling extension from the IT meltdown couple years back (2017?), where they granted me Silver that seemed to have a longer expiry date.
I wonder if me hitting Gold a year later before expiry finished somehow extended it further?

Either way, does this mean that if i don’t renew gold now, i will maintain it until Aug 2021, and need to make sure i renew it next year, not necessarily now?