Error - Delivery Options

Error - Delivery Options

(STILL WITHOUT AN ANSWER)
Good afternoon, my name is Barbara. 

I would like to talk about an error thats is occurring while I try to fill the post office mode (in Brazil, we call "modo de entrega" you can try to translate if you does not understand).

The option is selected and saved, but it does not appear in the final document. 

We need some help to solve this, because we've tried all the options and buttons and it did not work.