Telkom Network will **** you

On 30 March 2019 I dialed Telkom'd *123# ussd to check offers they have for me I found a 1GB deal for R10. 00 I decided to buy 2GB only after I paid when checking my balance do I release through the balance sms that the data expires on the 31st March 2019. Why was I not informed the time I was purchasing that of the expiry date. This is the **** Telkom is running. I regret joining them but I will be leaving the network.