Empty promises

I ported from Vodacom to a complete unlimited package at Telkom mobile. I started experiencing problems with sending sms's in July/August. I contacted the call centre and was told to go to the branch. The branch advised that I should do a sim swop and also advised that my initial package has changed and that only 50 sms's per day came with the new package. I advised them that I did not mind paying for the extra sms's I required to which they added a 500 sms bundle to my account. I have complained ever since telling them that I am still being limited with sms's per day and that whenever I receive the sms that says I have reached my daily limit I am unable to send sms's.

I want my account to be open to send 1000 sms's per day if I choose to do so. I don't want limitations on services that I choose to use. If Telkom cannot do this then they need to release me from my contract to enable me to go to a provider that can assist me.