Hey @cyberninja4ever thanks for reaching out! Can you tell me some more about your issue? You're unable to unlock the Vault? Do you have enough diamonds to open it? The second clone chamber costs diamonds to use and are single use only, meaning if you want the second cloning chamber, it will cost diamonds to buy a new one each time. You can use the free cloning chamber as many times as you like.
Thanks for the quick reply. I wasn't aware the clone tank was a per use cost of diamonds. Or the vault. Can I make an update suggestion. To make it a one time time purchase.