I got offered a welcome credit of £5 on an Amazon gift card shown on screen to install this app. I installed this app and then I discovered there is no way to use the £5 until I have a minimum of 20000 coins to get a £20 gift card for Amazon. Very misleading and I'm sure illegal due to false advertisement. I uninstalled straight away due to disappointment and knowing what these apps are like and how long it would take to even get 20000 coins.