MyBB Speeedtest App on Telkom MTN Roaming: Zero rated?

[Budza]

I'm trying to test if this is also free for Telkom users if roaming on MTN...

A few speedtests today have used ~25MB

My Telkom balance has not decreased by as much yet.

I'll do a few more and update later.

Phone is forced to use MTN, so no danger of using Telkom by mistake. MTN 3G is faster than Telkom LTE at my place anyway

Would I need to restart my phone to force a recalculation of my session to be sure I'm not being billed?

 

[Budza]

Looks like my balance has decreased by 20MB.



I've got an RSAWeb SIM I need to test with too.
I suppose I should do Afrihost on top of that.