Bad customer service!

We just inquired for Fibre in our area and this lady called us and insisted to get our bank details with ID which we didn't want to due to previous *****s on our account, I don't say that she wasn't doing her job but the way she addressed me was rude and had no manners at all. Are these people even trained for customer service? she kept on telling 'you guys inquired for the fibre!!' she didn't want to take a no for an answer, finally ended the phone call very quickly when she realized I wasn't gonna get what she wanted. Shame!!