Tosha bundles is a scam. I subscribed to Tosha 20, which entitles one to 20 SMS a day. I noticed that it was capped at 13 SMS - started charging after the 14th SMS, while the balance (*767*5#) still showed I had a balance of 7 SMS left. I immediately opted out. Will not lodge a complaint as I have another unresolved complaint with them of 2.7GB of data disappearing into thin air last October.
In case you are wondering why I'm still with them, I have a good chunk of airtime on it (courtesy of my employer) and will hama once it is exhausted.