You can buy SMS credits in the Wi-Fi Shop. When you have credits, you can send out free access codes to your Wi-Fi users.

If the validity of the access code is not longer than 1 month, the system  deducts 1 credit after each code that was sent successfully to a user (regardless if it was actually used or not). Access codes that expire in 3, 6 or 12 months costs 3, 6, 12 SMS Credits.

Credits expire 1 year after purchase, unless you buy more credits within 1 year. If you do so, the expiration of ALL credits will be extended to 1 year from the date of last purchase.

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