Liberty life disappointment !

I am beyond frustrated !! I paid my premium on the 3rd of dec with the correct ref and send the pop through on the 4th to ***. Today being the tenth I get an email saying it is over due!! I called the call centre immediately and chatted to an agent called faustina who advised they had made an error and allocated the payment to adhoc ! Even though my ref is for recurring !!! I would like this remedied immediately and I want a letter stating it will not impact my credit score ! I would appreciate if management called me ! This is not okay !!! Hi there I have just chatted to faustina. She has confirmed you received the payment POP on the 4th dec and it was paid on the third dec . The error was on your guys side as you allocated it to adhoc and not recurring - even though my ref no states recurring ! Please urgently remedy this and please ensure this does not show on my credit as a late payment as this error is not mine ! Please ensure I get an email stating this has been remedied and that it will not reflect on my credit score . I would appreciate a call from management