How can I receive the telegram groups or channel purchasing invoice?

When you are purchasing a telegram group or channel service, you can print out your invoice or save it as a PDF file right after you payed the fee and returned to the abarlink website. If you failed to receive the invoice while making a purchase, you can go to the “Package & Service's History” section from the “My Abarlink-->Plan & Package” menu and select your intended service from the displayed list. Click on “View” button, in the opened page you can see all the service information details. There is a button at the top left part of the page that you can click on it and save the invoice as a PDF file.