Hello, the recharge receipts are not found through Oasis, instead they are found through your financial institution or recharge method. On the website for your financial institution, you should be able to find information regarding the payments, including either a purchase ID or a transaction ID, this is what CS is asking for. In the case that your financial institution does not provide the transaction IDs through their website, it will have to be gained through contacting them, likely by calling them.