unity IAP blocks at InitializePurchase function, when testing on android phone for google play

thats to say the payment suspension window for google play didnt show up

however, some other app from google play downloaded did show payment window
anybody can explain?

ive debuged and sure that it was just blocked at InitiatePurchase(Product) , the istorecontroller was not null and, so it just for the connection to google play store, well im confused, looking for some great men