No credit card required
Browse credit cards from a variety of issuers to see if there's a better card for you.
OP, did your LO tell you if you need more tradelines? Some have a min number of tradelines (for example: 3) that have to be one year old or more. Do you have any positive tradelines that are closed?
By the way, it is not the size of the tradeline, it is the amount that you have used. If you have 3 $500 (for example) cc;s and you are only using 1 card with less than $45 balance, that will really help your credit. OTOH if you are using all 3 cc's and running up the balances close to the limit - it will tank your score.
OP,
I would make the $500 limit card show 0 balance and keep less than $10 on the 2000 limit card. with the 500 limit card, you don't have much wiggle room with any balances posting to it.
Fantastic score jump! Congrats! Sounds like you have everything going your way
With the info you provided I think you will see more than 620 in six months. One thing you should do is keep checking with Cap One on their prequal...about a month or two. They are very giving! I had the QS1 for just one month. Once it reported right after the first statement the Venture/Venture One/QS showed up! I went for the Venture card and was give SL of 10k. This boosted my score a lot. Cap One loved me using that low $500 QS many times and I paid as often to keep it under 9% util. I guess they just needed to see me using it for one month. So try that and see if it works for you. The higher limit tradelines will boost your scores.