South African postal service a Joke!

I have sent 4 emails to the customer services "hot line" and cannot get any response from the South African Postal service in any form regarding an International parcel - RB ********** 73SG • Sms line – non responsive with error • Call centre – no one answers • Tracking service on website still shows one route from Singapore when the Singapore postal shows it arrived in South Africa on the 22nd February. • Customer service e-mail – non responsive after 4 attempts??

It is shocking and i think further action is needed - maybe Carte Blanche should investigate?