I had my car repaired by a mechanic from ClickMechanic but the same problem has returned. I'm unhappy, what to do now?

In first instance you should always try to resolve any issues that arise after a repair with the mechanic directly and this can be done with our resolution centre (https://www.clickmechanic.com/resolution-centre). Should an acceptable solution not be offered by the mechanic then it is possible for ClickMechanic to help mediate the process to reach an acceptable solution to the matter for both parties involved; you and the mechanic.