If your submission deadline has passed and you haven't been able to submit your work, you can apply for a 14-day extension if you quality for extenuating circumstances (or 'ECs'). To qualify, you'll need to submit an EC claim within the given timeframe and provide any necessary supporting evidence.
For more information on what ECs are, whether you have them, what evidence you need to provide, and more, please visit our comprehensive Extenuating Circumstances webpages.