Hi I recently put purple crazy colour over my blonde balayage (I have naturally dark hair) and it’s gone a horrible green colour with some bright blue bits. I really want my blonde back and I have no idea how to do it. I’ve heard baking soda, ketchup (??), dish soap, but I don’t know if these will actually work or if here’s anything better. Any help would be so much appreciated as I can’t afford to go back to the hairdresser to get this fixed ahaha xxx