Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 6 months ago

If you were Baaligh at that time when you deliberately broke your obligatory fast, you have committed a sinful act and need to seek forgiveness and compensate  that day of fast by fasting a day of Qadha fast, and feed sixty poor believers as Kaffara of deliberately breaking an obligatory fast or fasting two months in stead.

'If you were not Baaligh, then no Qadha nor Kaffara on you.