ContribucionesMost RecentMost LikesSolutionsRe: Terrible internet service with no support. My advice is to call during the early part of the day so that you get your call center and less likely to get Global Care. The Customer Care expert can then transfer you to someone in tech. Re: How do i get someone to help me with billing issue? You can either sign into your account at My.T-Mobile.com or via the T-Mobile app. Select Contact Us and use the chat. Also, you have a better chance of getting someone that can help by calling earlier in the morning.