When a UPM is submitted, a Team member will usually attempt to contact the manager and then wait 7 clear days for a response. The 7 days in the instructions does not begin from the time the request is submitted, but from the time an email is sent by the Team. Allowing for the odd day or two off, requests may not be read or actioned for one or two days. So you may not see a result for anything between 8 to 14 days (in some cases).
Certainly if you have not had a reply in more then two weeks feel free to send a follow-up.