Billed what I was not supposed to be billed

I was over-billed on a day which was not supposed to be billed after having concluded a new, revised vehicle insurance. A certain Miway representative from the inbound call centre was rude and arrogant towards me when i informed him that i am not satisfied with his explanation and i requested him to call me back as i had used all my cellphone airtime after speaking to him for about 20 minutes. He said the matter has been resolved and there is nothing left to discuss. i insisted that his behavior is not client orientated as i am not satisfied. He rep**** and said he will call me within 24 hours. i then logged a request for callback and Busi responded. She even confirmed that she could see that the guy logged a reminder of some sort to call me back later when i needed clarity and being on the verge of cancelling my policy. He must be told that there is competition within the insurance industry and he should take this seriously. Busi calmed me as i was still boiling and apologized on behalf of that ill-mannered guy and patiently explained the whole situation and resolved my query. the lady deserves compensation and or promotion. i pledge for her recognition.