Disgusting Customer Service

I was there to book in my laptop for repairs. When I went to the repair department, there was no one to assist me there. I went over to the guard and she asked me to ask the ladies at Customer Returns to see where the guys from repairs are. There was a very rude white lady sitting to the extreme left (when the customer is facing her) of the Customer Return desk. All I asked was if she could assist in checking where the person from the Repairs department was. She was so rude and used a lot of hand gestures saying that I should just sit there and wait and that she is not from that department. She went on to say that it means she needs to wake up from here, go all the way around to the other side, just to check where that person from the Repair department is. This lady should not be dealing with customers because she has no customer service skills. She is a ticking time bomb just waiting to explode and it's a pity that her interaction with me brings down the Pinnacle name.