Customers can use Touch 'n Go eWallet as a payment method to purchase apps and digital content on Huawei AppGallery and make in-app payments.
Below are the articles that may be useful for you :
How do I make payments using Huawei AppGallery auto debit with Touch 'n Go eWallet?
How do I check my Huawei AppGallery purchase history?
Are there any additional fees when using Touch 'n Go eWallet for Huawei AppGallery purchases?