I need to change region but I have a 0.59 balance

Buy something more expensive than your balance and use a different payment method from the current region for the extra amount; if you can't, click here and ask the iTunes Store staff to zero it.

If you're referring to another store, check its documentation.

(245777)

Because as long as you have a balance, you will not be

able to change the region.

Use the link Niel provided above and included on the line below:

here

You can also start with this link:

iTunes - Official Apple Support