Poor quality after sales and Customer Services

I purchase a Connex Note book in November 2018 at Hi-Fi Corporation at Somerset Mall. The charger of the Note book broke off in the laptop. I took it to the shop as it was still under warranty and i did not want to remove the portion that broke off in fear of loosing my warranty. The laptop was taken in and i wa told that they will send it away. An hour after i left the shop i received a call from a lady called Claudine. She told me that she removed the portion from the laptop and that i can collect it from the shop. I was confused as Claudine is not a technician and only received the goods from customers so how on earth can she remove the broken off portion of the charge. I went back on Saturday to collect the notebook from her. I asked her where i would be able to purchase another charger compatible to my notebook. She abruptly told me that she is not a sales person and she would not know where i could purchase one. She never even walked over to ask anybody in the shop where i could perhaps purchase a charger. She is extremely rude and have no idea how to speak to a customer. I am very concern that she might have damaged the charging block when she removed the broken off piece from the laptop. Very bad and poor customer Service. Before leaving the shop i went to the sales person in the laptop area. He could immediately tell me where i would be able to find a charger for my laptop. I am disgusted by her mannerism and poor service.