To be able to receive a confirmation email from Codashop, you need to input your email in this field during purchase.
After you buy diamonds via Codashop, you’ll get a confirmation email that you can use as a receipt. You can find your Transaction ID on this receipt.
If you can’t find your confirmation email, contact Codashop support directly to get a transaction history: https://support.in.codapayments.com/hc/en-us/articles/360003903975-How-Can-I-Get-a-History-of-My-Transactions-