Heritage credit card holders can increase their card limits, and typically without any hassles. There are two limits applied to your credit card: your account transfer limit and your credit card limit, each of which has a separate limit.
To increase your Heritage credit card limit, you can contact Heritage on 13 14 22. Unfortunately, you cannot opt to increase your credit card limit online due to security reasons. 
You can, however, request to increase your daily account transfer limit and BPAY® to up to $40,000 per day easily through Heritage Online. To do this,  you'll need to first ensure that your credit card limit is more than $40,000. If it is lower, you’ll need to first ask Heritage for an increase in your credit card limit. 
- It’s important to note that once you change your credit limit, the daily periodic rate and corresponding annual percentage rate will change as well. This is likely to come into effect on the first day of each billing cycle that begins in March, June, September, and December. The effect of an increase in the annual percentage rate and the daily periodic rate will lead to an increased amount of interest you will have to cover in your monthly payment.