Unfortunately, consumable (non-permanent) credit-type in-app purchases cannot be restored. They are not linked to your account, and the data is stored locally only on that specific device. You will experience this loss even if you simply delete and reinstall the app without changing your device.
Both Apple and Android platforms operate this way. This is not an issue with the annual subscription. Here are the documentation links regarding this matter:
https://support.apple.com/tr-tr/102383
https://support.google.com/googleplay/android-developer/answer/14590082?hl=tr