Your posts don't really make much sense @AbdelfatehO5830 and you really need to post in English if you want assistance from the Community Forum.
If you are having a problem then you need to explain/describe it clearly.
E.g. what are you trying to do, what steps are you taking to do it, what happens/goes wrong, any error messages, etc.?
If you need to contact 48 support about this then see the links in my signature below.
If your mobile data isn't working then when was it working ok last?
Are your APN settings configured correctly?
If you're on Android then you can text "APN" to 50048 and follow the instructions here to do this:
