BEWARE: MobileXpression is scam!!

MobileXpression is a app that gives you gift card for collecting information about your data usage ( as they claim I don't know what and how much they collect), I downloaded this app and kept that as per instructions and everything was going well till I redeemed my first reward, 4 days after I didn't got my reward I asked their support and I got this reply:

Thank you for contacting us regarding the issues you have been experiencing with your account. At this time we can confirm that your order has been canceled based on the presence of fraudulent and suspicious account activity. This activity includes how you joined our service, multiple missing days of data transfers, and numerous low-volume data transfers. Based on these violations, your accounts have been terminated and any pending orders have been canceled.

So please stay away from this scam, they will just collect all your data but never give you your reward.