Urgent update

I'm reopening something from a week ago. Because I am again getting no response to my notification that the supposed method to fix my problem simply doesn't work. (As I have discovered in the past, MultiChoice's help seems to copy and paste from old but now incorrect documentation.)

All I have been trying to do since early on 3 April is enter my new credit card details, after my card was lost. I was given instructions on Saturday 6 April how to do this, but since Sunday I have emailed four times with a simple explanation why this doers not work. In summary, credit card debits are no longer available on the website. I am leaving for an overseas trip tomorrow and if this is not sorted today I'll again be disconnected (for the third time) while I'm away. MC's last response two days ago has shown that they have misunderstood my simple explanation. They said that they supposedly corrected an error that I never reported, because it didn't exist! Sheer incompetence for eight days.