Oof this is not good. The class is called Bank, you're using a lot of static widget ids which will certainly break over the course of a month. API should be the most stable part of your script and never break.
The getRandomInteger stuff is a bit confusing as well, what you could do is get a random point in the rectangle of the widget, since you wouldn't want to misclick? Also wouldn't withdrawing one at a time instead of Withdraw-10/Withdraw-X be less "bot like"?
I'm not quite understanding this part:
this.mouse.click(new RectangleDestination(bot, new Rectangle(482, 99, 10, 0)));
This means you can only withdraw an item at a very specific slot on a very specific tab setup?
Hopefully you take it constructively, sorry if I came off as rude.