Cannot accept Meeting Request updates on iPhone

Question

Hi,
When I am working at a client's account, I am sending or forwarding important meeting requests to my private mail.
Then, when I open that mail account on my iPhone, and open the meeting request mail, I can scroll to the bottom and see a 'mime-attachment.ics'.
When I click on this, I see the Event Details. And the bottom of my screen reads 'Add To Calendar'.
This works well.
When I update the meeting request at my client's account, I'll get a new mail from there in my private mail.
But when I open it on my iPhone and scroll to the 'mime-attachment.ics' and click on that, I will see the Event Details, but only Delete Event shows at the bottom.
When I click on that, the meeting is gone from my calendar.
I expected an 'Update Event'.
Help!

Answer 1

I accidently solved this problem.
When you put an invitation for a meeting in your mailbox on your iPhone, you can click on the attachment to view that meeting and ADD it to your (iPhone) calendar.
But when the meeting is updated (e.g. to another date), you get another mail with attachment on your iPhone, but when you click on the attachment you will view the (old) meeting and can only choose to DELETE that (not update).
But... and here it comes... Once you get back in the mail again, after you've deleted the old meeting, and click again on the meeting attachment, you will view the updated meeting and can choose ADD to your calendar.
That's it. Problem solved (in two steps).