No respond for pending audit payment

I submitted my tax return on date 11 august and I received an sms payment due to you is pending audit does that mean I have to submit supporting document cause I dont receive any sms for direction from SARS.

Yes it does, are you registered for eFiling?

No not registered for efiling yet what to do now or I need to register?

Please call 0800 00 7277 first and find out if SARS requires you to submit supporting documents and let us know.