Beat around the bush, no delivery since friday

ive been waiting for an FNB delivery since Friday from digital planet, i received confirmation sms stating my order is out for delivery and on route friday the 19th between 9am and 3pm i left work on friday and recieved an sms stating they tried to deliver my order and i should contact to reschedule, i called on monday and they advised it will be delivered the same day, i called them again @3pm to follow up as the sms stated between 9 and 3, Yusar who answered advised they sometimes only deliver up to 5pm, he said he would send an instruction the the courier and call me back, he never did, i left the office @5pm still no delivery, i received the same SMS to call and reschedule. i called today twice and now im told it wont be delivered today, i asked why and they could not tell me why, they advised yet again that they will contact me. but this contact centre never gets back to me or calls me! and RTT did not pitch once within the 3 WORKING days to even attempt to deliver my parcel as the SMS states!