I have just done a Google search for "Renew driving license" and the site for ADL comes out at the top.
For searches like this you should NEVER take the results that come out on top (they often pay Google to come out on top of searches).
ALWAYS look for the official web site (not always easy to spot I agree).
As has been said, companies now set themselves up to offer to supply something for you (a VISA, EHIC Health card, driving license etc.) and charge for it, when it may well be that you can get it from the government department for free.
For example a tourist VISA to visit Australia is free if you go to the official Australian Government web site.
But if you do a search on the internet for "Australian Visa" you will find all sorts of sites that will do it for you, but they will charge you for it.
Sadly the internet is a bit like the Wild West nowadays and you have to be REALLY careful what web sites you go on and who you give your bank or credit card details to.
So you have given you financial details to this company, but you have no idea who they are. In this case they may be genuine but another time you may give your financial details to a bunch of crooks.
We all have to be very careful on the internet.