Service delivery breach of procedure

I have 3 packages that were out for delivery from Themu. One was delivered by a DHL driver, however the two outstanding were supposed to be delivered by Buffalo. The driver did not follow through per process as confirmed with the call center so the packages were returned to the warehouse. Its a week later and still I have not received a package. I have phoned the call center daily, only to be said that I can expect delivery the next day and that it has been escalated. Note that its a week later, and still no delivery and no one from escalations has contacted me. There is no communication between the warehouse and the call center as the call center is not able to confirm anything of follow up to give confirmed answers or feedback. I have been waiting for "next day delivery" as the call center refers to but still have not received anything and when calling for updates I receive no feedback. Two orders outstanding on delivery and note DHL service was very good so I do not understand what is wrong with Buffalo. BUFZA***YQ and BUFZA***YQ