Rain - just disappointed/shocked that my sim cannot be tracked ??

My son had a prepaid cellphone and it got affirmative shopped on the 21 June 2024 between 14:00-16:30. At a prominent casino in Gauteng. I contacted Rain on the monday, 24 June 2024. I asked them if they could at least tell me where the sim card last pinged from a tower, as we had searched everywhere as well as phoning the casino to ask if they can see on their cameras. Rain just straight said they cannot tell/help me with the information. But surely Rain could see who/where the last data on the sim card was used. It is my view that every owner of a cell number must be able to be allowed to find the last tower it pinged. It is totally unacceptable that Rain did not help. I know the sim was not activated on the phone, but could they not see with the data usage any location?