A If you cannot find your subscription even though you are logged in with the same Billing Account as the one you used at the time of purchase, please contact the relevant application store support team.

Google Play Store:
https://support.google.com/googleplay/gethelp

App Store:
https://getsupport.apple.com/topics

HUAWEI AppGallery:
https://consumer.huawei.com/en/support/mobile-services/appgallery/

Microsoft Store:
https://support.microsoft.com/en-us/microsoft-store-and-billing