But It's Against The Law
Isn't this a breach of European Directive 2000/35/EC and the Late Payment of Commercial Debts (Interest) Act 1998? People don't have to suck it up because it's against the law.
If Dell are doing it deliberately and openly I suppose the real question is why the European authorities don't take action against them.
If Dell terminated a contract or refused to renew one on the basis that a supplier took them to court, that too would be a breach of the law.
Seems to me they are simply operating with impunity.