Poor service and loss of airtime

I cannot get an English customer care message and there is no alternative number that can be dialled. I purchased R100 airtime on 11 April 2020 and have not used it and today when i checked by balance it is down to R30.00. Where has my money gone to? I have been using whatsapp and Telegram which uses data. That balance has been dropping but there is a good explanation for it. Please will someone who speaks English contact me. I asked t\the bot service and am still waiting for a human to contact me