New client, sim card not working and no response from support

It's my first time with rain since friday 12 June 2020,I bought a R479 package that i have paid for, the sim card I also revieved on the 12th june but ever since there is no neywork coverage,I got a SMS to say its activated but when I put the sim in my router or mobile phone it says no sim card detected,I have sent emails on top of emails but this far no response. This is POOR CUSTOMER SERVICE!! how do I pay for something I have never used and will expire in a few days time, as a first time client I am frustrated and would like assistance or my money back