Really vodacom you are useless

I cancelled my top-up contract, it ended 31 Oct 2017. In the afternoon of 31 Oct my whatsapp messages did not go through., allthough contract should still be valid until 12:00 am. Bought 100 mB of data, still did not work. Phoned vodacom three times, by the way, useless options, no option for what I wanted, had to go through all the options to get to a consultant. Was told all is fine must switch phone off for 5 minutes then it will work. It did not help. Phoned again this morning, was told problem is whatsapp. Really??? It worked before the contract was cancelled, why will it not work now?? Please train your consultants vodacom!! Was told a consultant will phone me.Yes sure, heard that before and nothing happened.