Dsv failure to answer phone call.

On the 31st of December I set up my fnb account and the lady that helped me was excellent, she then notified me that dsv would call to set up a deliver date. I missed the call on friday because I was working. Since then I've tried to phone dsv to try schedule a date but I was on hold for half an hour before I gave up.

It's frustrating that calls cant be answered.