debit order reimbur*****t

I'm really disappointed with the service i received from Wesbank motorite plan, I requested for the car service extension, got a quote of which the quote included the Staff discount and the consultant assisted me advised that the staff discount will be deducted before the first instalment or debit order, of which it didn't happen the full debit when through on the 20th September 2020. I've been emailing Motorite, Wesbank requesting for the reimbur*****t of the discount, not receiving any feedback. Today is the 20th October 2020 the full debit went through again including the discount. , I'm really disappointed with poor service