I called in March to make dental appointments for ...

I called in March to make dental appointments for my daughters at the same clinic they always go to. I show up today and they say there are no appointments and then they go on to say one of my daughters has never attend the clinic.. Like im crazy or something. As if i dont know where i take my children. I call in to complain about my experience. And the staff was very rude. And was trying to place blame on me. There was not a direct number when i called to make the appointments back in March. When i talked to the oprarter she transfered me i told her the location where i wanted to go then she transfered me. So i assumed i was talking to the right people!! Plus the place i always take them to, keep saying shes never been there i have a teenager and even she said she had been there even said hello to one of doctors she recognize passing by. Its super annoying and inconvenient that no apology was made to me..