How can I have support for my SIM card not working anymore from yesterday ?
The same SIM is not working if trying to other iphones...it looks a SIM issue.

How can I have one for replacement ?? I am without the phone/connection...and it's a problem.

Phone is working with other SIM but not with 48. 
Can someone check whats's the problem or do something ?
There's no way to contact the support....bad.