Worst customer service

Worst customer service ever, got a text that I will get my parcel 27.03.23 before 18:30 and nothing was delivered. No text or phone call to let me know it might be delivered the next day or whenever. Emailed and requested to be called back still nothing. So I decided to call to understand what is the hold-up, get told lane excuse that they don’t have my postal code, of which I said that’s not true you have deliver before then the lady said it might be something else then I ask what, no answer. I loose it and I said a courtesy call would be nice because I have things to do I can’t spend 2 days waiting and speculating it might be today based on the delivery messages I am getting then I am told they are still within the delivery stage. My question is then why sent me messages saying you are delivering today if you are not sure. Just inform me if you will deliver or not. Still no phone call back