Welcome to the Bunnings Workshop community @Midnight. It's great to have you join us and many thanks for your question.
Our colour matching service is available in all stores open to the public. Unfortunately, our metropolitan Melbourne stores are not yet open to the general public only trade customers. We look forward to returning to normal trading as soon as possible and offering these services once again.
For stores open to the public, you'll simply need to take a sample of your paint into the store and they can attempt a colour match on it for you. The sample of paint will need to be at least the size of a five-cent coin.
Please let me know if you need further information or had questions.