It's really easy to top up your own Sunrise prepaid account online. The amount is deducted from your PostFinance account.
With a mobile phone using a postal account
- Register a mobile phone number one time only and link it to your postal account
- In e-finance under the "Services" menu item, choose "PostFinance Mobile"
Top up your calling time credit instantly by SMS
- Text keyword RELOAD and the amount in Swiss francs (only whole numbers) to number 474 (e.g. RELOAD 20 to 474)
Payment is automatically made from your private account at PostFinance