You mean left over pearls?  I am struggling to figure out how you have leftover A-coins, don't you buy the number you need to buy the pearl package in the exact number?  Does the Launcher work differently than Steam when it comes to A-coins?

Wrote a ticket, following up here - I got novice to legendary a year ago or sth, only now ppl told me I can get both of the other bundles as awell. So I'm left with 600 acoins as well.

Ticket GM told me they can't just manually turn acoin into pearls in 1:1 ratio as I asked them to, so we gotta treat it as a design flaw that needs to be adressed - cause as low as the sum is, it's still frozen resources not providing any service. How legal is that is also debatable - to keep ones money without providing anything other than a stack of virtual "currency" that can't be spent or given back.

And if you had read my post correctly you would have known I'm talking about doubling up on the same package. You can't do that. I believe you can do this only if you had bought the upgrade prior to PA's publishing takeover. In the previous A-Coin sale, you would have been left with extras that you couldn't use as well so it made no sense to buy them.

ok if you have yet bought previously Kit after transfert Kakao->PA you can't do what i do these days.

So have some items for some Acoins it would be awesome.
But if you have bought only kit novice to legendary and have yet 600 Acoins you can do like me :