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That's quite a bit for a 30. I've seen as much as 100, but yours is considerably higher. Assuming it's all due to the late as opposed to higher util, reliance upon CCs, lates or other baddies aside from the 30, then know that the damage will fade. If the 30 just happened, then a month later you'll probably see a moderate rebound since the status will go from something like "is currently 30 past due" to "was 30 days past due". You'll see a status change when it updates next. Then over time the damage from that 30 will fade. Provided there are no future baddies, you'll see most all, if not all, of the points come back within 2 years because it's only a 30. Or GW now and see improvements sooner.