Disappointed is an understatement!

I changed my product online on Monday 2021/10/11 and called the Mweb call centre to confirm if I've done it correctly and the agent advised that it was done correctly and will take up to 72 hours to complete,which didn't happen.On Monday 2021/10/18 I received an sms from Mweb saying the couriers are on their way with my product and will contact me for delivery dates etc.I then called Mweb call centre again to clarify that I did not order a new product but changed my existing product and the agent again confirmed that it was an automated sms and that my product should be changed within the next few hours.It is again now 72 hours later and my product still has not changed.All in all it has been 8 days and still nothing.This is pathetic to say the least!