Almost 1 month to deliver a cellphone

I placed an order with MTN oline for a cellphone on the 01/02/2019 and received a call. Did the voice application and was advised the phone would be delivered in 5 to 10 working days (i.e 15/02/2019 latest the phone would be delivered). Did follow up call on the 14/02/2019 to find out what the progress of delivery only to be told then that my supporting documents were missing ( why was i not told this in the initial call?). sent the documents on the 14/02/2019 and made follow up call to ensure they received the documents, was told that this would take another 5 working days for them to approve the documents. On the 21/02/2019 made follow up check progress was told was in the vetting process and that this would take ANOTHER 24 to 48 hours. Received an sms to advise that application was approved on SATURDAY (23/02/2019). I call in today 25/02/2019 to find out when my phone will be delivered cause my cellphone is giving problems and was advised that they don't know. This is absolutely frustrating and pathetic service from MTN. Isn't the online shopping experience supposed to make my life easier and be more convenient , but iv'e waited almost a full month for the cellphone to be delivered. I have been patient enough and have lost my cool now. I want my cellphone delivered as in yesterday. Really pathetic. I'm truly enraged.