I can highlight the text to change but it will not let me change the content
You can update your information online using the CRA’s My Account service, or by calling the CRA at 1-800-959-8281. The Agency also accepts address changes by mail. To change your address by mail complete and sign Form RC325, or send a letter to your local tax centre. Four ways you can notify the CRA you’re changing your address
If you require further assistance please contact our phone support team for further assistance or contact us directly on Facebook or Twitter.