Just enter your Mobile Legends user ID and zone ID, select the item you wish to purchase, complete the payment, and the item will be instantly delivered to your Mobile Legends account.
To find your User ID, click on your avatar in the top left corner of the main game screen. Then go to the "Basic Info" tab. Your user ID is shown below your nickname. Please input the complete user ID here, e.g. 12345678(1234).