I am trying to make an online transfer from my EU bank account to my revolut card. The instructions from revolut say this must be a SEPA transfer not a SWIFT transfer but SEPA transfers are not mentioned on my online bank site.
Your bank account is in euro, right? It should be a standard EU transfer, the wording in the UI can differ of course. If you want post a (censored) screenshot of your banking screen where you can choose the transfer options.