We are sincerely sorry for the inconvenience.
The game might behave in such a manner when influenced by an unstable internet connection. While playing with a mobile device, even with a good WiFi connection, you’ve got walls, obstructions and other household interference to consider that may interfere on the app's performance. Power saving mode, graphics settings, low RAM memory, and an outdated operating system and/or router can also decrease game's performance in certain cases.
We kindly ask you to try closing and reopening the app. If the purchase is still undelivered, please contact the in-game customer support, so we can help you solve this on the best possible way.
See you on the battlefield! ;)