The staff on duty yesterday didn't understand, then the exchange took a long time. After that, when they were about to leave, the staff laughed for no reason, it was obvious that I was offended. I don't know what they were laughing at until they all closed their mouths and whispered. The incident happened around 3 pm, and the supervisor was also there and laughed too. I swear, I was so offended. Very bad attitude!!