It will be a setting on your phone @Help-1.
If you let us know the make/model we can give a more precise answer, but check settings for something along the lines of "block private numbers" and make sure it is not ticked/turned on.
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
