FNB Unacceptable service levels

I emailed on 18th June to arrange a double debt on the 2nd of July on my Fnb life insurance.On the 21st I received confirmation from Fnb that they have set up the debt order accordingly. Policy no NL ***. Unfortunately to my huge dissapointment the outstanding money did not go off againts my account ,as confirmed by Fnb. My life insurance is now in arrears due to bad service from Fnb