Hi, Mark.
This isn’t currently available, but you could use theĀ User Switching plugin (third-party, not guaranteed or supported by us) and login as them and enter the information for them while they’re on the phone.
For the idea of paying later, you could request this as a new feature (or maybe search to see if the idea was already posted by someone else) at our plugins’ UserVoice page.
This allows others who are interested in that feature to easily voice their support. We frequently review suggestions there to find out which ones are popular, then we implement as many of them as we can.
If you post it / find it, feel free to link to it from here in case anyone comes across this forum thread in the future.
Please let me know if you have any follow-up questions on this topic.