Hello
Like what Ranged said above, you can claim your 2 monthly keys by claiming both VIP and VIP+ reward. You can check the last time you claimed a reward by going
here, typing your Minecraft Username followed by 0.00 (For rewards since they are free)
If you have any issues/questions, you can open a support ticket
here. Alternatively, you can message one of our staff on Discord (My tag is Jelly#1234)
Hope this helps