Stayed two-three times. Got room #401 entitled to ...

Stayed two-three times. Got room #401 entitled to have breakfast at 12 fl club area. When i entered it, a lady who worked there shouted "Room number??!" I said "excuse me?" Hoped she will ask more polite way. Not really, nothing close to came out of her second time, same "Room number?!"
Is this okay for Shetaton?