Contact messed up

REPRODUCIBILITY (% or how often): always
BUILD ID = OS VERSION (Settings > About product): OS 4.3, OS 4.2
HARDWARE (XA2, X10, X10 II, …): XA2 single sim
UI LANGUAGE: Dutch
REGRESSION: (compared to previous public release: Yes, No, ?):
No

DESCRIPTION:

One contact in my adressbook somehow got linked to someone else’s number. Impossible to unlink.
Every time this person calls me or sends a text, my phone will not recognize his name (which is in my addressbook) but display a number +32xxxxxxxxx+32xxxxxxxxx. It is not possible to reply to an sms to this messed up item in my database

PRECONDITIONS:

Get a text or call

STEPS TO REPRODUCE:

  1. get a txt or call
  2. try to reply to this text or to the call in the phone history
  3. Not possible to send an sms or make the call

EXPECTED RESULT:

When a call or text from this person comes in , his name should be displayed, not this linked number that I cannot delete or find in my addressbook

ACTUAL RESULT:

Unable to reply tot sms or make the call from the phone’s history

ADDITIONAL INFORMATION:

(Please ALWAYS attach relevant data such as logs, screenshots, etc…)