If you are being charged VAT and have moved to a different country, you will want to update your country of residence on your settings page to make sure that you are being charged the correct VAT amount.
Step 3: Some countries will have a Province field appear. Select the proper province, or state that you live in. If you are located in the US, a field will appear for you to include your Postal Codes. Once you've selected the correct country and province/state (if applicable), scroll down and click Save Changes.