Fiverr Community Forum

What are review modification Rules?

I got an order and buyer accepted it after a lot of modifications and gave me 2.5 stars and I offered him more modifications to fix the review and after many more he corrected the review with 5 stars but after 10 days Fiverr support cancelled the order, refunded the buyer and reverted the review to previous 2.5 stars without my permission. Can anyone tell me what is Fiverr review policy and any tips will be helpful. BTW that person now got the design files and funds and I am left with the bad review and Fiverr claim to be neutral.