Incorrect Package delivered. TNT can't care less to sort it out.

<p>We received 12 boxes from a supplier, but TNT switched one of them and delivered another customer's box to us. Our box that is missing is of very high value and very high importance as it keeps our business going. It has been 2 weeks with communication to TNT but all they say is that they will get back to us. </p> <p> </p> <p>Can someone just get this sorted??? Do not understand how you can keep customers happy by not delivering their actual goods!</p> <p> </p> <p>Waybill: ********** 56</p>