Looking for a contact with clue at Choopa/Reliablesite network engineering

["Paul S." <contact () winterei se>]

Hi nanog,

Choopa/reliablesite is announcing our IP space, and despite repeated 
requests from us, they are refusing to withdraw the announcements.

Can someone with clue from this contact me? Does anyone know someone at 
Choopa neteng?

Their abuse desk has so far proved useless.