If you really did not expect any cash receipts, and the caller claims that he sent you money by accident, use the "Return transfer" button. In this case, the exact amount of the transfer will be returned exactly to the bank account from where it was sent. Never agree, if you are asked to return the money by sending it to another phone number/requisites — it could be a scam! The refund button is available 24 hours after the transfer has been received.