TNT bad service delivery

My shipment was suppose to have arrived last week Thursday 17th September. Made payment for shipment on the 16th. It's been 7 days since that expected delivery date. Everytime I call they tell me they waiting for payment. I refer them to the email with payment notification. They accept that it's a fault on their side and promise that delivery will be made the following day. It's 7 days later and nothing. I've called in 3 times and on all three times they accept fault and promise delivery. I'm tired of having to fight foe something i already paid for. Please stay away. Won't be available to receive the parcel next week and i bet they'll only be able to deliver next week. Disappointing