Who to contact to adjust feedback

[Pravado]

Have been trying to get negative feedback removed for a while, nobody seems to be responding

https://www.cheapassgamer.com/topic/327125-steamorigindesura-etc-buyselltrade-thread-read-the-op-one-post-every-three-days/page-338#entry14043892

 

[CheapyD]

done.