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I say give it a few days, if it really is gone CK will update it. I had a collection pop up today on my EX, CK has yet to report it. I expect CK to report it by next week sometime. CK is pretty bad for getting your score but they tend to report events on your report pretty accurately from my experience. Hope it's gone GL
CK only retrieves 1X per week. On the app or the website it will say how many days until the next update.