As described in the last paragraph from the latest Changelog v0.33.4 **Known Issue with the 1 TB Coupon** In order to get the 1 TB coupon, you need to add a credit card or pay $50 in STORJ token (excluding discount). To trigger the coupon you also need to create a project. The coupon is not getting added if you pay $50 STORJ token in 2 transactions. At the moment it has to be a single transaction with $50 or more. Please contact support if you are affected by this issue.
So in order to increase your limit to 1 TB now, you would have to add a least another $50 in STORJ or add a credit card to your account. With this latest release which is already installed on the satellites, your limit was reset to zero because the balance of your STORJ deposit was insufficient. You will not actually be charged anything while the 1 TB coupon is active (if triggered today, until the end of March) unless you exceed this 1 TB - month limit.