The spending and time limits are normally generated with how much you spend and how quickly you spend on Chaturbate.
This can range from 24 hours – 1 month, how much you can spend can be lifted if you have your payment (credit card) verified with Chaturbate Billing department.
You maybe able to find out what your limits are by contacting support@chaturbate.com
If you have reached your spending limit via credit card, you can still purchase tokens through wire transfer to Chaturbate directly. These tokens are at a cost of $0.08 per token with a minimum of $250 but you will need to transfer details which can be given by Chaturbate billing department: billing@chaturbate.com