IANAL, maybe there is some way to revoke the trademark http://manuals.ipaustralia.gov.au/trademarks/Part_62.pdf http://manuals.ipaustralia.gov.au/trademarks/Par

IANAL, maybe there is some way to revoke the trademark http://manuals.ipaustralia.gov.au/trademarks/Part_62.pdf http://manuals.ipaustralia.gov.au/trademarks/Part_62.pdf Have you agreed any IP rights transfer with the supplier before? If yes then maybe these could be used to bounce them or make a settlement.