Bad reception service rude staff member

Called the hotel on the 28th of may to cornfirm my booking for 25th of june. The lady who was at reception @16.20pm was very very rude she told me they are close for booking and the hotel is fully booked because they have a group of police who booked in. How can a hotel be fully booked when i have already paid. She even hanged up the call while i was still speaking. So rude and so unprofessional. I wont advice anyone to book this place pathetic service