Commissioned user Serathus at Deviantart back in 2016. Prior to this the person took two years to complete a commission. With a lack of clarity I commissioned them again and have only had a sketch since. I have sent them emails and notes on Deviantart, all of which have been ignored and said user has posted artwork since my notes.
More proof can be provided if necessary. Names are edited out obviously as this was done via email for the last commission. Prior commissions were done over Deviantart.
My old username was Katrica, real name edited out (K---) then I swapped to Shayochism and now Sadismancer. Any reference to those usernames is still me.