A credit limit increase (CLI) gives you more spending power and the ability to maintain or lower your credit utilization ratio. While Capital One might choose to increase your credit limit because you’ve been a responsible cardholder, it also accepts requests for increases.
Unlike several issuers who carry out hard credit pulls when cardholders request credit limit increases, Capital One makes its decision based on a soft pull. This way, there’s no adverse effect on your credit score.
If Capital One denies your request, go through the letter it sends and look for the reason. By fixing the problem/s at hand, there’s an increased possibility of success when you submit your request again. Another option is to apply for a new card.