When dedicated server providers don't react to complaints, complaints are instead sent to their upstream transit providers. Dutch based hosting provider Ecatel

When dedicated server providers don't react to complaints, complaints are instead sent to their upstream transit providers. Dutch based hosting provider Ecatel is an example that quickly comes to mind where their upstream providers simply stopped peering with them due to content issues. Hosting providers typically do not like the overhead that comes with handling DMCA and similar requests, servers that are very high risk should ideally operate with their own ASN and peering arrangements. Most hosting providers I have dealt with expect abuse resolution within 24 hours, five days is a very long time for abuse issues to be handled.