通通 [www.cantonese.sheik.co.uk] and 統統 [www.cantonese.sheik.co.uk] mean the same, according to CantoDict.
Personally, I had never heard the phrase 統統 in Cantonese, it might be for Mandarin only
Personally, I had never heard the phrase 統統 in Cantonese, it might be for Mandarin only