bad after sale service!!

I literally was holding the line for over 6 minutes to try and speak to a consultant regarding a delivery that should have taken place on 11 December 2019. It is now 17th December and i still have no idea when my order will be delivered. I emailed as well and told them i wont be at the delivery address on the 13th December for the 2nd attempt at delivery and still they rep**** a day later telling me they will deliver on the 13th to the address that i wont be at! the automated system clearly does not work in the consumer's favour as who can wait 24hour for urgent reply or afford to hold the line for over 6 minutes to speak to someone??!