Make sure your phone is unlocked, before buying a sim card in the USA. Foreign sim cards only work in unlocked phones . If you are not sure about this ask your provider in your home country before your trip.
Read moreHow do I dispute a charge on T-Mobile?
If you have any questions about your bill or want to dispute any Charges, please contact us by visiting www.T-Mobile.com, by calling 800-937-8997 or 611 from your Device, or by writing to T-Mobile Customer Relations, P.O. Box 37380, Albuquerque, NM 87176-7380.
Read moreCan you get a refund from T-Mobile?
T-Mobile will gladly assist you with your Returns. You can return or exchange a Device or accessory (“Device”) for a refund within 14 days of the purchase or lease date of the original Device .
Read moreWhat happens if I go over my mobile data limit?
On a mobile data plan, using more than your allowance each month usually attracts a surcharge, or your provider may slow down your data connection . Your provider may automatically give you the extra data as a top-up and charge you for it as you use it. This extra data is sometimes called an add on.
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