I've been trying to add the releases of Gangsta that has finally updates after about a year, as can be seen on mangapark.com

I added the scan group that was said to translate it

yet every time i try to add the release, it isnt approved

how do i find how that is

Does the group qualify under this?
http://www.mangaupdates.com/faq.html?cid=3#item16

If so, it MAY be possible that is a group that doesn't want their releases to be made public. I know there's a list of some a list (Which I think only Lambchopsil has ...) of groups that don't want the things they scanlate to be updated.

If they are a proper group according to that link above and not on the list. Are you adding the release correctly? Like in the link below.
http://www.mangaupdates.com/faq.html?cid=3#item3

Even that takes a while to get updated in the system, as the release mods have to check if it's fake or not.

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You actually never added the group

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A just ruler amongst tyrants

I somehow overlooked to submit releases for a series i follow and even overlooked the releases myself.... so i just went back and submitted the last ones by Variationa and the new ones by MTSC (the group mod may or may not keep the name) just after submitting the group. And now we wait .

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How come Variationa's Tumblr doesn't even list the release of ch35-36? I only see text translations posted on earlier dates

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A just ruler amongst tyrants