Once you have created a response, you can continue editing it up until the closing time. You can edit both 'draft' and 'submitted' responses during this time.
For draft responses
When your response is saved in draft, you will see a 'red pen and paper' icon. Click this to continue working on your response.
For submitted responses
If you have already submitted your response, the 'pen and paper' icon will appear green. You will need to click on the 'You’ve responded' link to first view your response(s).
Next, click the Edit link to edit the response. If you have multiple responses to the one request, they will appear here.
Make sure you save any changes you make by clicking the 'Update' button at the bottom of the relevant sections and clicking the 'Post to buyer' button at the final 'Save Response' tab.
You can view your response by returning to My Responses and clicking the 'view' button to the right of the relevant response.