I am already a customer, with a specific SIM only plan and phone number, that I use for private life. I want to add a second SIM card and phone number for my professional contacts to keep it separated from private life. It means I am paying already by direct debit, all payments made well and no issue. When I try to add a secon plan, the system ask for my last name, phone number and birth date. But systematically doesn’t recognize me and thus is blocking me. How to deal with that? is there a phone number I can use to contact customer service at ID Mobile and sort out this mystery?