You can update your electronic contact details (email and mobile phone number) and control the use of your personal data by submitting permissions and prohibitions on S User Account, by visiting a co-op member service outlet (available in nearly in all Prisma and Sokos stores), by sending a message via the feedback form – select “asiakasomistajuus” (co-op membership), S-Etukortti card and Bonus as the subject matter – or by calling the S Group’s co-op member service, tel. 010 76 5858 (Mon–Fri from 9 am to 4 pm, call rates € 0,084 per minute).