The most money a bank will hold is 24M (level 20). You can have 4, making 98M. With the small amount you have at the beginning, that is short of 100M I need to unlock next bit of land.
Am I right in saying that l won't be able to unlock my ext bit of land by purchasing it. Therefore leaving me with the only option of getting a lot of gold balls?

It's just that I don't want to waste time increasing my bank levels if there is no point.

Any advice would be appreciated.

24 X 4= 96 well it did when I was in school

24 X 4= 96 well it did when I was in school

Finance building lvl 20 is 74million
And I believe guilds are higher?

The key point is that you're spot on - the max bank capacity isn't enough to unlock the last few parcels of land...

If only there was another way of unlocking land. Gold balls perhaps...

the idea is to unlock land with gold balls not the play money you make in the game....how do you want the developers to make a living?

Should let you pay to unlock land

They do...

ATM you cannot unlock the last 4 plots unless you use GB - cash option is gone for some strange reason.

You can earn golden balls for free by completing achievements and winning tournament games