Delay in app review : more than 13 business days

Hello, I'm desperately seeking your help here. I submitted an app for review, on Feb 16th, it's still sitting at Waiting for review status. I raised a follow-up ticket on Feb 20th, inquiring about the status of the review. Auto response was a feedback will be given by email in 2 business days. It's been now more than 10 business days, no feedback on the ticket. I raised a new one today. I really cannot understand why this is taking so long, while I'm told by other friends around me that this usually doesn't take more than a week max. Please help!! I'm losing all credibility with my potential customers and users at the moment because of this delay.