Ron_

Unfortunately this is a side-effect of utilizing just about any cloud based service. Your best bet is to submit a ticket providing the dataset you need imported, and see if they can perform a manual import on their end for you, assuming you are using IPS Cloud service for your website.
Working around the cloud API rate limiting is likely not going to be possible from the end user side. If any temporary allowances are possible it would surely need to be requested via a ticket.
Good luck, this one sounds like a headache.

As a final slap in the face, I couldn't even reply to the original ticket. The response box was there, but clicking the submit button did nothing. I am assuming they closed the ticket but their wack support system is unable to indicate this to me anywhere.
I had to create a duplicate ticket to follow up with them.
I love IPS and have been using the software since InvisionFree forums were a thing, but the current Support team and flow to get support is such a joke for the price we pay for this software.
Rant finally over.

This post could be helpful if I know ahead of time if updating to 4.6.3 is going to mess up my forum!  If so, I am not going to do it just yet!!

Dear if you have nothing useful to add, please leave.
I'm really worried because I have a lot of access on my forum and I can't lose access because of bugs that take a long time to be fixed.
 
Thanks.