Over promise and under deliver

On the 17th April 2019 an order was placed for a Canon I sensys LBP6030W printer with other things..The order was delivered late and received it order on the 30th April 2019..after a long struggle and I also phoned Canon offices for support on the 13th May 2019 due to the fact I could not get the printer to print via wifi nor my mobile ..as per Canon the unit could not do mobile printing but even on the printer box it advertises the printer do print via wifi and mobile..so I took it up with Takealot and spoke to 2 gentleman ..they suggested I send back the printer and on my cancellation I must say CHANGE MY MIND..that was the 13th May..on their rating of service I must note another printer and they will find out about the specs and come back to me..on the 15th I made a follow up call and ask to speak to a manager and I spoke to Brent a supervisor..explained everything and that I am pressured for time because I stay on farm and my son is doing home school and exams starts 20th May and the exams need to be printed and submitted before school closes the 14th June 2019. I also fwd the picture of the printer box that I took that they advertised the printer do mobile printing..in the meantime the printer was taken to Shell city where all the parcels are drop off and collected..the SMS I received for the printer to be collected because I cancelled it wa sthe 14th before 17h00 ..the 20th May I made another follow up call to Brent which shift only started at 12h00 and a message was taken by Amanda he would phone me back and whilst I spoke to Amanda I asked her when will the printer be collected as it was still at Shell...she made arrangements and FedEx did the pick up the afternoon..in the meantime I received emails from Brent that he assured me his supplier said that the printer can do mobile printer and therefore I then said if they are 110%sure it does then please send back the printer...then later that day,20th May,I spoke to Unsauf the manager and she explained to me the situation they had and she understand my problem and herself and Brent will do their utmost to assist and get the printer back to me as we speak...the Tuesday afternoon Brent phoned me and told me they just struggled to get a driver but they will try to get the printer asap to be delivered to me and the cartridges will follow the 2x parcels will not be delivered the same time..Brent said they will 1st deliver the printer as I asked him which parcel will be delivered 1st due to the fact I needed the printer..so I received and call from Shell City the 30th May there was a parcel from Takealot..very impressed and glad the printer is finally there for collection..pick up the parcel..it was the cartridges and no printer .emailed Brent due to the fact that the phone was just ringing after I made my selection to be assisted..hold on forever..and I received and reply for Unsauf that she was off sick and Brent was assisting and they had trouble with the couriers SKYNET..emails back and forth from the 1June as we speak still no printer..in the meantime I order something else from Takealot and was already delivered and still printer..as from yesterday the 4th June I get communication via email from a Celest and they will try to get the printer to me by next week Wednesday the 12th June 2019..the day I must submit the exams which I could not get printed and done ..this is not acceptable what happend to their customer service ..going for 4weeks later and everytime they have a different excuse and they don't understand the matter of urgency..