At etermax we do not process payments for integrated purchases nor do we have access to information related to your credit card. This is because payment transactions are made through the Apple App Store or Google Play Store (depending on the device you have) and use the personal email address associated with that account.
Apple or Google will email the receipts for these transactions once the purchase is complete.
In case of a problem with one of your purchases, we invite you to visit the following article: "What do I do if I had a problem with a purchase?"