Hi Asyraf,
I could not find any other way to contact you so I'm hoping that leaving a message here would be okay. I'm currently working on a study on Sentiment Analysis and Dr Tan is my co-supervisor. She shared your study with me and has asked me to request from you the telco dataset that you performed sentiment analysis on. Please do let me know if you need more information or would like to discuss this with me. Looking forward to hear from you.