Telkom - poor service

My husband Andre ID no *** 084 on 2 March gave 30 days notice upon the expiry of his contract in respect of mobile phone number *** at Telkom at Carnival Mall. The next thing his service was discontinued. On 10 March he visited Carnival Mall branch again and his service was reinstated, however only as pre-paid. He learnt they have a history of following the wrong processes and accordingly prematurely cancelling contracts. Since then on 15 March he was advised that he was awarded a "gift" to the effect of 500MB of data. However, this is unacceptable as on 2 March he still had 97 minutes talk time on that contract - wat happened to that?