Open CardLink Online by selecting Login on the top right of you screen. From within Cardlink Online go to the Summary tab to see your credit limit.

Your credit limit needs to be sufficient to cover transactions invoiced for the previous billing period, plus any purchases made in the current billing period before you make a payment.

For example, if you are on a monthly billing cycle, your credit limit needs to cover the purchases made for last month, plus any purchases up to the time you pay the invoice for last month, which can be up to 51 days.