From the cryostorage sample page, you can see the number of samples expiring in 3- and 13- months.
Filter for samples based on expiry date using the 'Expiry' filter, where you can filter by either already expired samples, or samples expiring within a given month(s) period from today. You can also sort based on sample expiry date by clicking on the 'Expiry date' header on the sample tab home page. Samples that are already expired will be highlighted with a flag icon.
Frozen samples' expiry dates can be edited by finding the relevant sample, scrolling down to the 'Freeze' heading, and editing the expiry date as indicated, then clicking "Save."
Send dispensation forms and statutory notices as relevant, which you can read more about here.