You will not receive message notifications. You will be alerted about unread messages. With regards to the phone notifications you will have to force stop the app, pair your Reflex and your issue should be resolved.
I have been facing same issue since i have purchased this reflex band. I have received notifications only 3-4 time after that no notification and nothing. Earlier i was searching for a good band was unable to find out, then i came to know about fastrack reflex and i just buy it just reading name “FASTRACK” i am now disappointed with your this brand.
Do let me know the solution for the same other wise i will suggesst all that not to purchase this product.