Originally Posted by sdsearch

The best advice in a situation like is to "show good faith". Ie, do the extra 1k spend as soon as you can, but yes, of course, hopefully no later than the refund might happen.

Since this is what seems to be recommended to everyone on FT who asks, but we don't typically get datapoints about whether people followed that advice (and later reports of what did and didn't happen), all we can say is presumably most people do that, and presumably that's why we don't have constant reports of SUBs getting clawed back because of refunds. So presumably "good faith" efforts work well enough.