It could possibly be a case of one department not knowing what another has already done. Perhaps the representative you spoke with didn't realize you have already completed the documentation/verification process with another representative earlier. I would give it a few more days and recheck their status update page again. If you have indeed been approved, it will update with a card mailing date. Calling will most likely lead to more confusion. Their front line representatives aren't always aware of what has recently been completed in my experience. I avoid calling them as much as possible.
*thanks for replying (didn’t mean to type it as a question) 
This is pretty much a sub prime card and they will eat you up with fees. I’ve never had one but my wife did and it hasn’t been all that great for her. Have you tried any of the prequel sites such as discover or capital one? You may be able to get one of those that will grow even if it starts out as secured. Either will be a better card in the long run.
