If you have bought Premium through Google Play Store
Step 1: Open https://payments.google.com then log in with the email account that was used to purchase Premium of Manga Rock.
Step 2: After that, on the left sided, choose Subscription and Service > click View Purchases
Step 3: Look for a completed transaction with details like this: Not A Basement Studio - Manga Rock - Full version (Manga Rock - Best Manga Reader)
Step 4: When opening this transaction details, please take notes of the Transaction ID. It looks similar to this: 12999763169054705758.1395219851951062.
Step 5: Open Manga Rock, click on the icon > choose Help Center > Give Feedback. Then, send us an email with your transaction ID.
Alternatively, you can also forward us the original receipt from Google:
Step 1: Open Gmail > Search for email from Google Play (firstname.lastname@example.org)
Step 2: Download the receipt. It should look similar to the image below.
Step 3: Open Manga Rock, click on the icon > choose Help Center > Give Feedback. Then, send us an email with this receipt attached.
If you have bought Premium through Paypal
Please make sure to log in with the account you used to purchase full version of Manga Rock.
Step 1: Open Paypal > Payment Sent and look for a payment sent to email@example.com
Step 2: Take notes the Transaction ID
Step 3: Open Manga Rock, click on the icon > choose Help Center > Give Feedback. Send us an email with this Transaction ID