Cannot adjust the update frequency

When you change the update frequency of your Loca, this is processed at the next received position update.
Example 1:
You receive a position update 1x per day at 10.00.
You change the update frequency at 21.30 to every 4 hours with the time set at 10.00.
You will then receive a position update every 4 hours from 10.00 the next day.
Example 2:
You receive a position update 1x per day at 10.00.
You adjust the update frequency at 21.30 to every 4 hours with a time of 09.00.
Your setting will then be processed at 10.00 the next day.
The following day at 09.00, a position update will be sent every 4 hours.