no responce to emails sent and telkom line goes straight to voicemail

I have purchased an item from ebay and item is pass delivery date ,supplier said could be stuck at customs, i try calling this number ********** 637 and always go to voicemail so i tried email address which gets read but no response email used Gregory Mark Munisami ********** ive been trying from 14-09-2017 ,cant make it to go the office due to work. please advise if read, cant go to their office due to my job.