Quicksilver Secured card upgrade to a Quicksilver world MasterCard: how long for a limit increase?

Overview

I thought you couldn't upgrade secure cards anymore, but I received an email today saying it was upgraded and that my deposit was refunded. I'm very happy with this, but the limit is still at $500. How long should I wait to see a credit increase, or "when" should I expect a credit increase? For reference, my SoFi card increased its limit from $3,000 to $9,000 without me asking, and I've owned the card for a year, so it has been working in my favor lately. I don't mind p

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