The spokeswoman earlier this week said that this is a "normal procedure" as a result of the second-stage investigation into competition concerns raised by the merger. The statement itself is confidential.
The two companies now have two weeks to reply to the statement, the representative said.
The EC decided to launch the second-stage investigation in June after voicing doubts that the merger between the two companies would be compatible with fostering open competition in the European Union. The Commission's deadline for ruling on the deal is late October.