I dunno what Yahoo understands by customer service. I am not sure if they have any. have no contact number where u can call them. you can write to them but they wont respond in spite of they mentioning their TAT as 24 hours. Two weeks and 8 case number(latest 28162347) later, I am still struggle to have anyone take notice of my complain. WAKE UP YAHOOOOOOOOOOOOOOOO!