This should also be useful:
Also see article 31 of the current 
Premium Terms…
OVERSEAS MEDICAL INSURANCE
31.1. If you are a Premium User, you will, if you qualify, benefit from the Overseas Medical Insurance, provided by White Horse Insurance which is subject to the Policy Documentation.
31.2. For more information, please consult the:
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Key Facts which are available at https://www.revolut.com/assets/premium/key-facts.pdf) and Schedule 1;
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Statement of Insurance (available at https://www.revolut.com/assets/premium/statement-of-insurance.pdf); and
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the Policy Documentation (available at https://www.revolut.com/assets/premium/key-facts.pdf) for full information on the terms you are subject to.