It been over 2 weeks I requested my old number to...

It been over 2 weeks I requested my old number to be ported to Lebara and still its not done. website says 1 day and its been 15-16 days.
Every time I try to contact them I didn t get any answer. I am sorry to say but this is a very bad service. And I don t know who to complain or go for help.
I am without the phone from the last two weeks and no one is bothered to help
Worst thing is they have taken my number so I cant go to anyone else as well.