Yes, I don't have evidence but SKMM suggested that I put in chronological events with a bit of explanation in that my data was stolen in my email. I had just sent the email over.

From my previous experience with Mobile Internet, no issues were encountered. 350MB can last me for 30 days with some data left which I need to use them all up. But just lately, 350MB only lasted for 5 days with minimal Whatsapp usage.

It doesn't matter if SKMM could help. I just want an explanation or resolution from SKMM or Hotlink. Rather than having the issue hanging. If there is information on the breakdown of the data usage, the investigation would be over. This service provider would usually have this information, in this case Hotlink/Maxis, but they mentioned they don't have the information and hence cannot check and cannot do anything.