How to block people on Skype?

Hi, some randomer keeps calling me on Skype on my iPhone and I don't know how I can block him. Does anyone know?

Try this Go to the Contacts or Recent tab, right-click the contact's name and select Block This Person…
In the message box, tick Report abuse if you wish to alert Skype of a nuisance contact. And then click block…

Yes of course, select the person and then right click on your mouse, clic on block this persone and it's done!

Now go on the top of the window of skype on the left, there's written "skype" click on it, u'll find a list, click on "privacy", a window opens and on the left of it you have "privacy settings"---> show advanced options ---> and tick all options so that you allow only your contacts to join you or call you, like that you'll never be bothered by anyone again before you agree to add him to your contacts or asking him to do with you