The line above Buy is a line (shape). You need to move your cursor around these various items and watch what happens. If you click on the line, you'll see the corners. Or right click and format it's length in the dialogue.

You can adjust tabs, as I said above, by dragging the symbol in the ruler. Or open the Paragraph dialogue and press the Tabs button at bottom to open the tabs dialogue. Clear the one that's bothering you and Set a new one.