I would say, this service is some kind of fraud.
They sent me the emails with my tax refund estimate figure saying: "Tax Refund estimate is based on your taxation information provided by you and accessed from ATO records. So please click below button called "View & Approve" to view and give us authority to lodge your Tax Return."
They actually never requested me to send to them my work related expenses.
As the tax return figure was good for me I have authorised them to lodge.
After almost two weeks waiting time I have received another email from them:
"Hello,
Thanks for lodging your Tax Return with us.
We want to inform you that we have received refund from ATO, So soon we will be transfering the refund after deducting our fees and advanced paid to you in your nominated bank account. To view the invoice please click below button called "View Overdue Invoice".
View Overdue Invoice
Pay Via Debit/Credit Card"
Once I have paid the fees via Credit Card I have got a call from them straight away advising me that my tax return figures has been reduced that much that the fees are actually bigger the the tax return.
They said that the fees I paid will be refunded.
The fees were refunded, however, they are keeping my tax return and ignoring all my requests to transfer it to me.
Needless to say, I would never authorise them to lodge the tax return if I would know the figures would be so low.