Revocation of proxy (1u1 Widerruf einer Vollmacht en)

Annual General Meeting of 1&1 AG on 20 May 2026 Revocation of power of attorney granted and instructions issued to the Company's proxies / Revocation of proxy given to a third party

(please write in block letters)

I / We hereby revoke:

First and last name*

Email address

Phone number

Ticket number Number of shares

*mandatory

Please mark clearly: The power of attorney granted and instructions issued to the Company's proxies for the Annual

General Meeting on 20 May 2026.

The authorization to the below indicated third party for the Annual General Meeting on 20 May 2026:

(please write in block letters)

First and last name / company / institution*

Email address **

Address line **

Postcode*City / Place of residence (incl. country)*

*mandatory

** recommended details

Return address:

1&1 AG Email: [email protected]

c/o meet2vote AG Marienplatz 1

84347 Pfarrkirchen Germany