Debit ordering twice refusing to refund my money

Rain you have debited me for the month of February while I made a manual payment to them on the 25th of February for February, I need my funds reversed. Rectify or I will go make the reversal in the bank and just unsubscribe from rain you lose the client or reverse you have a ******** **** that told me his not going to do **** and didn’t put his name on the mail, reference number of case is ***