Compose a formal ‘Letter of Complaint’ per the ACCC directions and give it to the DJ manager and be sure to have it receipted/verified in some manner s/he received it. CC’ing Dual It would not hurt.
Anything less than the formality of a ‘Letter of Complaint’ written as if you are a silk in front of a magistrate and the magistrate (ie the manager in this case) knows nothing about anything (including your rights, claims of quality, reasonable minimum lifetime and why you claim that, and so on) so you need to explain it to him, is but ‘idle chit chat’ as I call it. The ‘Letter of Complaint’ and their response or non-response can be used as evidence should you chose to go to your consumer affairs agency; conversations and what amount to ‘random’ emails, not so much.
