Horrible Service :-(

Horrible Service!!! I ordered a pre-pwned iPhone 7 plus on Wednesday 23 April 2020 and the phone is still not delivered. I called the call center on Thursday 30 April 2020 and was informed that the phone is ready and awaiting collection by the courier, i was told it would be delivered on Tuesday 05 May 2020 and it is now 15:42pm and i still have have not recived my delivery nor a phone call advising where my phone is. I tried calling the call center and could not hold as i was number 40 on the line then i decided to go to he istore in clearwater mall, what a useless exercise as the store manager doesnt have any access to track my order & she didnt even know what the istore customer call center number was, i had to google is myself. All she could do was send an email and advise that i will recieve a call, which until now, nothing, no contact form istore.