Vodacom does it again paid to no service

Yesterday I purchased the R6 for 60 megabite data. Tried sending pics but it kept refusing. Saying no network coverage. After about 4 attempts I left it and made peace with loosing out on the 6 rand. Little did I know vodacom would clean out my remaining airtime balance and still not even have the audacity of sending thru the pics. So now I am left with 5 unsent pics, no data, no airtime and I must just accept. Its funny how when I wanted to use a service I paid for there is no network coverage but when vodacom wants airtime they just take. So what did I pay for? I see they have been consulting JZ. And then u get their spokesperson Boitumelo from call centre data advance yada yada who tells u that u used ur data and exhausted ur airtime voluntarily in ur sleep....