You can delete your private Mobilly account by registering on Mobilly website with your phone number and permanent password. In the Profile section, press the Delete account button.
If it is not possible to access the old phone number or Mobilly account password is not available, you can fill in the Mobilly account closure form and send it to [email protected] or Mobilly office in Riga, Dzirnavu Street 91, k-3 -20, LV-1011.