Elite Status Extended to June 2019 - Why?

Discussion created by idt on Jul 1, 2017
Latest reply on Jul 13, 2017 by scubachef

I received an e-mail today which said "Congratulations – you've earned enough points to keep your Platinum Elite status through June 2019."

I wasn't aware of anything in the Marriott Rewards programme that would give me this, and can't find anything in the programme rules about it, so what it is it?  What have I done to get this?