Renew or activate signature

Electronic signature activation

How to activate NEW
Certum's electronic signature?

Activate a Signature

Electronic signature renewal

Renewal of Certum's e-signature
step by step

Renew a Signature

Get in touch with us

Temporary change of hotline working hours


Dear Sir or Madam, due to the epidemiological threat and out of concern for the safety of our employees, the availability of consultants from the Certum Hotline has been temporarily limited. Therefore, the waiting time for a connection may be longer.

From 23/03/2020 the working hours of the Certum Hotline will also change until further notice, which will be open from 8 am to 4 pm.

We have collected answers to frequently asked questions for you on the Technical Support page. If you cannot find a solution to your problem, please contact us by e-mail at

We apologize for any inconvenience – we hope for your understanding.

Certum pays a lot of attention to providing Clients with as complete information as possible at each stage of the report. In case of any technical problems or inquiries regarding our offer, please use chat, the hotline or the contact form.


We promise that no question will remain unanswered.

Hotline (for mobile phones)

+ 48 91 4801300

Fill out a contact from

Contact form

Certum Consultants communicate in English and are available during business hours Monday to Friday from 7 am to 4 pm Central European Time.

Visit one of our
Points of Sale

There you can:

  • get a Certum e-Signature in 30 minutes
  • get a consultation about using an e-Signature
  • verify your identity
  • purchase qualified services and data security certificates
  • purchase smart cards, smart card readers and accessories
  • buy cards, certificates, readers and accessories

Become a Reseller

Offer your clients the most popular e-Signature in Poland.

Learn about the benefits of our Reseller Program:

  • 2 partnership models
  • 4 billing models
  • Dedicated Account Manager

Contact Details

ul. Bajeczna 13
71-838 Szczecin

fax: +48 91 4257 422

Complaint Services

Please submit complaints via e-mail:

or by postal service, addressed to:

Asseco Data Systems S.A.

Królowej Korony Polskiej 21,

70-486 Szczecin, Poland

marked „Complaints”