TPN not upholding blacklisting

I had a tenant who didnt pay for many months and racked up over R50K rent. I followed all the TPN letters and timelines for eviction. He was removed from my premises and blacklisted on TPN. A few months later the tenant sent a letter stating the blacklisting was against the wrong entity. I submitted all lease agreement with the correct entity names as well as all outstading payment proof. They did not ask Tenat to submit any proof of payment etc. TPN ruled in the Blacklisted tenants favour to lift the blacklisting. Why bother with TPN services if they simply allow unsupecting landlords to sign leases with tenants who were blacklisted. Avoid TPN as i believe this is not ethical behaviour