I often use this hotel to book rooms for customers...

I often use this hotel to book rooms for customers (approx $400 per night -- and I usually need to book 5 + rooms) -- as it is very convenient for my guests to lodge here before catching their flights (obviously)... However, the last few times I have spoken with the reception they have been EXTREMELY rude and quick to dismiss me. I mean... is it so terrible of me to call and check to confirm the rooms I have booked and prepaid for? Is that such a inconvenience for the hotel to check and verify for me?
I will NEVER be booking here again.