If you get extra GB, the usage is not shown in the SLT app, if you purchased details information by paying extra RS 40. This is very suspicious because I purchased extra 20 GB last December and all vanished within 2 days and usage meter does not show the activities consumed data, however it shows all uage for the internet activities done in standard monthly quota.
FYI: My Epic game launcher updated Witcher 3 automatically and it consumed 60 GB of standard data and quota ended in 15th December and usage meter showed me that it 60 GB used by Epic games, then I purchased this 20 GB and set auto update option for games were turned off and then extra 20 GB vanished on 18th December however usage meter does not show any activity. This is very suspicious.
However Dialog shows the usage information for Standard and Extra GBs in their APP and they dont charge extra to show the details like SLT