The 6-month summer special only gives you one extra daily key; your daily keys were doubled during June as a taster for the new "double daily key" purchase released recently, and since it's now July, that taster has ended. If you don't pay additional money to buy the double daily keys option, you're supposed to receive 3 daily keys now as a 6-month summer special member.
"These ghastly beasts CAN be slain! They CAN be overcome!" -Borch Three Jackdaws