No.

I told my sister at night I will go with her in the morning to the train station to drop her off. However, in the morning she told me that I do not have to go, so I decided not to. Have I broken a promise here?

Psychological and Social Problems | March 11, 2014 5:40 pm
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I wanted to know if it wrong to NOT allow people to use you? meaning you suspect that they are using you, so you do your best to prevent it, but you help them with what you can but don’t go to exceeds.
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I want to leave my job since I know now that it is haram, but i have a contract with them.