Yes you do (August? ok.) and you can use it until August, but you claimed the award itself (the travel package, which included the miles, a phone card a hertz discount coupon and the hotel award certificate) before the deadline of July 31st. It's a done deal. You can use it or redeposit it for a small fee and get 50k MR points back.

Incidentally, welcome to Flyertalk. If you want information about the 713, I'd suggest you take the time to read through the wealth of information in older posts in this forum.

-David