It is not possible to create an advertisement without a telephone number and/or e-mail address. Without any contact information, others are unable to contact you. So there should always be at least one option active. Optionally you can also add an URL to your website.

Click here for an explanation of how to add an e-mail address to your advertisement.
Click here for an explanation of how to add a phone number to your advertisement.
Click here for an explanation of how to add a URL to your advertisement.

It is not allowed to mention your e-mail address, telephone number and/or URL in the advertisement text.
It is not allowed at all to include address details, bank details and other personal details in the advertisement text.

If you do not place your contact details correctly, your advertisement will be rejected.