****************, arrogance and most unprofessional

I sent a parcel weighed merely 0.5kg of a 2nd hand phone on 19th Dec. I entered dimension and weight. The quote was 800 rand (expensive but bearable). DHL decided to charge me 900+700 = 1600 rand for a small parcel. I queried and DHL said it was a mistake and I should be refunded as charge was initial charge of 800+. After one month with no further feedback or refund, I queried again on 15/01, the weight is now 0.54kg and there is a dimensional weight of 0.43kg (the consultant tried to justify and then realised it wasn't going to fly). Then after 1 week later,21/01 they came back and said the weight was indeed 0.54kg so they are now charging me the full 1kg. So I asked about if the 40g was additional package by DHL and they avoided to answer. I also asked to escalate this complaint and query to the management and they just ignored me as well. And I have bought many items from amazon the last few months and they were delivered by DHL and Aramex... One of the pressure cooker weighed 6kg and it was 20 times bigger than my phone package and it was 120 usd comparing to the phone which was 100 usd. I also emailed them multiple invoices from amazon and as mentioned.. They are simply ignoring me.. I have been very accommodating and patient after one month and this is purely unprofessional and day light *******. I will never use DHL or recommend them again.