Sparklz, i know this is not going to be what you want to hear BUT eBay policy is as below:

Important information for sellers: consumer guarantees, returns and warranties 

Sellers are required under Australian law to accept returns for goods purchased from a business and provide Australian consumers with a repair, replacement or refund if the goods:

Are faulty, or become faulty within a reasonable period of time after purchase

Are not fit for any purpose you stated or that the buyer made known to you (i.e. they don't do what you said they would do)

Don’t match your description or sample

Are of unacceptable quality, or

Fail to meet other mandatory consumer guarantees under the Australian Consumer Law.