Took forever to download data, to now not being able to play. Guides me to upgrade the tank right from the start up, but when I go to do the research it tells me I don't have enough credits to do it. Directs me to the store or says earn from battles but I can't even battle, the guide won't let me out of the tank upgrade screen. Downloaded the game twice, cleared cache data... some help from devs would be appreciated or else I'll just delete it and not be able to play with my son.