Arrogance & Lacking Customer Service

On announcement that our flight from Frankfurt will be delayed for 15 minutes, we are then informed it actually has been cancelled. The rebooking help desk provides the only option for the day of being sent to Munich & to Wrocław from there. Delay in final arrival in Wrocław was 7 hours. This delay qualifies as reimbur*****t in view of EU law… but submitted claim is being ignored!