Revolut is not a bank, they are defined as INTERNET FINANCIAL COMPANY.
If you buy something in a few seconds your money will have disappeared from your account (as in all banks).
But if you have a problem with a purchase, because you feel cheated by the seller it is impossible to get help from them,since according to them they are not a bank.
All the information according to them must be in English. So if you have bought via online store in your country (which is not a English speaking country ) they will not accept your claim in your language. They will not support you. They need all documents related to the transaction in english to proceed further. According to Revolut, visa and mastercard accept only claims in English. My claim was part in English and part in Spanish and they said that they will not proceed with complaint.