Unfair service disruption

We bought R109 voucher at Pep Stores on the 25th July 2017 & recharged it the same day with challenges. The following day, the 26th decoder was still not activated. I called Stat Sat TV & was told they were experiencing technical problems which is a general problem but the TV will be fine by the end of the day. True we were sorted though I've been getting SMS's that by the 16th of August this voucher will expire. I ignored the message based on my calculation that 16th is too soon for the voucher to expire, at least after 30 days. To my surprise, my service has been disconnected. How come the voucher loaded on the 25th expire before 30 days activation? Technical problem occurred then is affecting me as a client, why? This morning I spoke to an agent who promised to look into the problem & give me a call. I'm still waiting & in the meantime I cannot watch my TV. This is really annoying, I need a solution to this problem ASAP. By the way I have the name of the agent I can name & shame her if I want.