Buying SENT Stamps While Sending a File
There are two ways to buy SENT Stamps, before you SENT and while you SENT.
If you find yourself trying to send files and you don’t have enough SENT stamps, don’t worry, you can buy Stamps at the very same time that you are sending the file(s), right from the Send page.
Once you have chosen your recipients, selected your files, and chosen your Expiration Date, if you do not have enough stamps for the purchase, the Buy Stamps button will appear.
Just use the Stamps dropdown to choose the amount you would like to buy.
Click Purchase Stamps.
Now you are ready to SENT your files and you can see your Stamps balance updated.