Cape Town - Quinton de Kock admits he still has a lot to learn when it comes to captaincy following the Proteas' T20 defeat to Australia at Newlands on Wednesday.

It was De Kock's second successive T20 series loss (England and Australia) as South African captain.

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It's been a tough learning experience for the 27-year-old who is expected to lead the Proteas in October/November's T20 World Cup in Australia.

De Kock revealed that captaining the national side has seen him gain knowledge that he wouldn't of gotten as a normal player.

"I'm taking it in my stride and I'm still learning to be honest," De Kock told reporters on Wednesday.

"There's a lot of things that I didn't see when I was just a normal player.

"Now as a skipper, I'm seeing things and learning a couple more things about the game like the thinking behind some decisions," he said.

De Kock added that he is asking former Proteas captain Faf du Plessis for advice when making certain decisions on the field.

"I am asking a lot of advice from Faf... I am still learning and hopefully I can get better and put the results on the board."

The Proteas were dismissed for paltry 96 in 15.3 overs unable to come close to Australia's 193 in Cape Town, losing by a record 97 runs.

Australian spinner Ashton Agar was the leading wicket-taker in the series with 8, while leg-spinner Adam Zampa was second with 5.

De Kock couldn't understand why spin was a problem for the South African batsman.

"I don't think it's a technical thing, it can dwell down to situations in the game when we get out," he said.

"I think it could be a confidence thing. I'm not really sure, I'm not in another batsman's mind.

"I don't know why it should be a problem because we got some good players of spin in the team but in saying that their spinners bowled well in tandem - they didn't give much away."

De Kock will now turn his attention to the three-match ODI series, which gets underway on Saturday at Boland Park (13:00).