TALAQ ON CONDITION

asalamalaikum brother,I would like to ask you regarding divorce. If a man says to his wife 'do not do a certain act or I have divorced you Three times.[if you do the act]'.Then later he says I didnt mean it ,its ok now if you do the act.So his wife does the act thinking its ok .Is she divorced or not and if so is she divorced three times ? I would like to add that the man does not follow any mazhab in particular and says the divorce is not valid,according to his beliefs.I will be grateful for your help.jazakAllah