There is several modes :
Home Network, Roaming Network, Unknown Network.
For each mode there is "Vehicle MOVING" parameters.
What is your current mode ? check it by SMS command : user pass readio 80. (maybe your operator is registred as Unknown Network instead of Home Network.
Are you sure parameters are updated using Fota web ? (I don't use FOTA).
Check by SMS commands Min Period and Send Period parameters please.