Motorola Defy XT557 can't get internet data

Hi so my parents recently got me and my sister a phone. They are both motorola republic XT 557.So the problem is hers can use internet without WiFi and mine can't. my parents say they are paying for it and it says data is enabled in the settings.



​It's getting very old even when it has 5 bars I can't even use Google. Please help me!

via Forums de téléphone cellulaire http://cellphoneforums.net/fr/motorola/t365984-motorola-defy-xt557-can-t-get-internet-data.html