Good afternooon @M.abdelhady,
It is understandable that you have questions about the invoice.
It's a pity that you do not have access to the My Simple page, because there you can view your invoices and specifications to find out the reason for the out-of-bundle costs.
Because you indicate that you do not receive an email to create an account, I think you have already created an account. In this case you can click on 'forgot login details (inloggegevens vergeten?' on the My Simple login screen. Afterwards you will receive an email with a recovery link with which you can change the password and view your username.
If this does not work, it is recommended to contact our customer service. We can be reached through various channels (WhatsApp, Facebook, by phone).
Greetings,
Mila