Numbers cancelled, horrible organisation/service

Since years we had prepaid sim cards from Virgin Mobile. Suddenly end of october 2014 two cards with the numbers ***1..... and ***2... were blocked without any reason and without telling us. A few days before the blocking in october money was paid on both cards and sms sent. We phoned at least 10 times the hotline. They always said they will check and call back. They never did. I went to the last virgin mobile shop in the Western Cape ( Canal Walk) and spoke to Christopher Okker. He checked the usage of the sim cards in october 2014 on our phones and promised to help. He wrote emails to the main office. I phoned him dozends of times in the following weeks. He said he will clear the situation and come back to me. He never called back. I tried and tried to phone him again. But now the number he gave me is not working any more. We went to Vodacome to ask them for helping us, because these numbers were for my business and there were at least hundred of business contacts saved at WhatsApp. I can not activate WhatsApp without the working sim card. WhatsApp was registered on these numbers. Even Janine from Vodacom tried two day to get hold of someone from Virgin Mobile. No way.