Stolen money from bank
 

In February this year I booked 3 flights from Manchester to Munich for £583. Two a half months later, Lufthansa took ANoTHeR £683 which to date they have refused to give me back whilst they investigate ! I was told three weeks ago they had issued a refund but have not and I'm without the money. Customer service are rubbish and have refused to help me anymore. Anyone help?