How do I get a clan

[Kestral~Fall]

So, I know this sounds dumb, but I have been playing untold tales for so long and spending my bonus coins on different clans. But whenever I click "New game" the only option is Thunderclan. Why is that? I have had two files that I get all clans, but I am still not able to play with the different clans. I really mean no hate I just want to play as a different clan instead of Thunderclan. Please can you tell me how to do it?