Requests for documents

I submitted my forms and got asked to submit some documents, which I did, but I'm not sure I did it correctly, as I haven't gotten any feedback after the first requests for documents. How will I know if they need more from me? Must I call them? I'm scared that they will fine me. Regards

Once the documents are submitted, SARS will then check them and has 30 days to come back with a Letter of Completion or a request for more documents. We see that you have submitted your documents on 1 November only, so there are still 18 days left. Don't worry you will not be fined.