If you need extra time due to extenuating circumstances, there is guidance in the Student Handbook about applying for extensions, including the forms to apply, information about supporting evidence, examples of accepted applications, and the extenuating circumstances policy.
Once you have checked you have grounds to apply (section 9 of the policy) and arranged appropriate supporting evidence (section 10 of the policy) you can submit your application via the helpdesk, or via learnersupport@oca.ac.uk The panel have up to 20 working days to review applications once the clerk has checked and confirmed that your application is complete, so please ensure you apply in good time, and always before the unit end date.
Note: If you need extra time due to a disability you have recorded with OCA, and have not had an extension on this unit due to this already, you can request up to 3 months by submitting a request on the helpdesk. See also Reasonable Adjustments - Additional time in the Student Handbook.