How do I cancel or adjust a filed GST return. It will only let me adjust the date

I want to ensure you get the right support for adjusting the filed return, kerrs.

You can reach out to our Phone Support Team and make sure to provide the following information:

• QuickBooks Online Company ID.
• Which tax filing period you wish to adjust.

Then, follow these steps to reach out to us:

1. Click Help located in the upper right-hand corner.
2. Click the Contact us button located at the bottom of the Help window.  
3. Enter a topic in the What can we help you with? box.
4. Click Let's talk. 
5. Click the Start a Chat or Get our phone number button.

Feel free to visit us if you have other questions or concerns. Thanks.