With Capital One, once bucketed, always bucketed. You can apply for a new card with them when your profile permits and get a card that's not in that bucket.
Some have grown limits successfully on Capital One starter cards. It's definitely not the norm, though. 
Having your limit raised to $1,750 is a good sign. A lot of cards never make it to 1k. All you can do is try. Use the card a lot, and always pay in full.
I agree with what others have said. I started with the Plat/QS and QS1. SL's were 2k and 2.5k. Closed the QS1 @4k. After the Venture was approved for 10k. Then came the WEMC QS @10k. Combined the Plat/QS to it and closed that also. Then Savor @10k. Once you get out of the so called bucket. Your SL's will be a whole lot more than the starters. Although those cards are harder to get now compared to 2016. The higher SL will show you've cleared out of the starter/bucket arena. Like Heaven said it can happen but it is possible for a few people. Use them a lot and PIF helps out for higher SP CLI's every 6 months or maybe a auto CLI. Good Luck!
@nonunderling wrote:What does "out of the bucket" mean?
Capital One cards, especially starter cards, tend to be stuck at lower limits (buckets) and unable to be increased due to how the debt is package and sold on Capital One's end. It's rare to get a super high CLI and it's better to apply for another card once a person's credit score has improved. For example, my card started at $2K, with an auto increase to $2500. I haven't been able to get them to budge from that point. Odds are I'm at my max and I'll need to apply for another card to get a higher limit.
