Non delivery, email not respond, call centre provide no solution

What is wrong with PnP! I have made an online order and received confirmation for delivery 30 January 2019. I have not received delivery or any communication on 30 January. Sent an email to inquiry on 30 January and received a reference number 104284. I still received no respond, I made two phone on 31 January at online help. Assistance confirm to call back, no respond at all. This is simply unpleasure shopping experience, can you provide a respond on the delivery date soonest!