Fiverr Community Forum

I am new seller and suffering from unfair Buyer bad review Buyer

I am new to fiver and i used to send buyer requests frequently … after some weeks a buyer placed an order in respond to my buyer request he send the requirements and I text him during completing the project also about his work progress he never respond and when I deliver the project he accepted the project instantly and mark my project as complete he didn’t left any review at that time after 9 days now he left a very bad review with all wrong info that I didn’t deliver the project and that was jst a jpg etc that was totally wrong I deliver everything timely and properly and he never text me that something is missing … What should I do now should I contact CS