So I was looking at an earlier thread about selling an item for 9,999,999g... And if the seller has even 1g on them, it can't be sold... I'm wondering. I cannot buy anything from a certain store. Can the reason be that they have acquired too much gold and have yet to deposit it into their ATM? I really need those items and it's the only shop that carries them currently. LOL.

If you can't buy anything from a store, it's either because you don't have enough money or they have too much money. The max gold a person could hold on them is 9,999,999 gold. If they sell something for 5,000,000 gold and they have 5,000,000 gold on them at the time, the item can't be brought since the person can't hold 10,000,000.
If you really want to buy an item, you could either mail the saler or message the saler.

Leo Server:
Main Team: Killerkev, iluvkev, ChibiKev, KevyKev. (All rb at lvl 199)
Burst Teams: KeyCey, KeyCay, KayCey, KayCay. (All rb at lvl 180)
Others: ilovekev, xKev. (Non-rb)
Just Me~

Contacting Me~
MyAnimeList c: