Ciao Maria,
The first link is a no follow so it doesn't count.
bellow a copy paste from the source code
a href="http://www.davincidrivers.com" rel="nofollow">
More then that the url is very "dinamic" probably not even indexed so even if the won't have the no follow attribute it still won't be detected by google.
The same story with the second link:
href="http://www.davincidrivers.com" rel="nofollow">rome airport transfer
So that means with those links or without them is the same => no actual links for your domain.
If all links build are the same - it's not going to help as far as Domain authority.
This is the reason for not having any link love from those links.
Mi dispiace per la notizia 
The first steps, easy steps you should do is create a few social accounts for your site: twitter, Facebook, g plus. Add links there. Those even if no followed are counted differently.
Get some links into a few good not spammy directories - pay attention not to go over board and become a spammer - you should read a few guides to stay safe.
Contact a few bloggers in the same industry and request for a link: be nice, don't beg, underline advantages for them to.
Just a few initial ideas - for a quick start.