Manual vs Automatic

I drive an automatic car, and now when my car must be booked in for repairs I have just been told that if I need an automatic car for rental I should have selected an automatic car with the insurance. How would I have known that when it was not explained to me? The more I am trying to explain to Nombulelo on the phone, she is not even interested in my explanation and she is adamant that I must request an upgrade with Avis. The same Avis who directed me to my insurance people when I mentioned it to them that I cannot use a manual. The service is being more appalling by the day. Why do I need to fight every time when I need services. Honestly it is beginning to seem like Discovery Insure is doing me a favour while I am paying my hard-earned money for these services. Why is it not explained that if one drives an automatic car they need to select an option for an automatic car. How is one supposed to adjust from driving an automatic to a manual? Now I am expected to incur extra costs for something that was never explained in the beginning.