You will receive your insurance policy document by email, which is very similar to the document you receive when purchasing any other insurance policy, which includes the full details of the cover you have selected, as well as your policy number and name etc.
You will also receive details on how to claim. Make sure to share both of these documents with your nominated beneficiaries and/or family, so that they know you are insured and know what to do, and where to get help, if you unexpectedly die young.