They have not paid my refund, this is the third week:(

I have not received my refund , this is the 3rd week, I’m told that the head office is investigating up to today. I cancel my order on the 23rd of August today is the 13th September. Thomas the guy who helped with the cancellation keeps telling me he is still waiting for a feedback from the head office. And he doesn’t contact me to update me,I’m the one who call him all the time. I’m sick and tired of this now,I don’t think they are taking this seriously. I need that money ,I have just moved in new house ,I’m buying everything from s****s to furniture and they are holding my money. This is unbelievable and it’s annoying me now. Will be forced to seek legal advice,I just can’t take this nonsense anymore.