Suddenly remembered my $40 Challenger voucher

I was doing some documentation at work with half eyes closed when I suddenly remembered I have a $40 Challenger voucher waiting for me to be redeemed. I was told by one of their customer service officer that I must collect the voucher by end of August which so happen to be by today. Just what exactly made me recall the redemption still left me puzzled.

I quickly made a call to the Challenger to arrange for an extension. I must remember to collect the $40 voucher by this week!

Looks like I keep recalling things.