Welcome to Vodafone Community
I just recently started a 30gb mobile Wi-Fi r218h started using it Friday evening
and on n off until tonite around 8/9 when I found out it had disconnected
checked online I had used 59gb of data
i roughly worked out how long Id been on it and it worked out about 20-22 hours is it possible to use this much in this amount of time bare in mind I was only online gaming for this time
What device(s) did you have tethered @Curtisb92
Online gaming can be intensive and use quite a bit of data.
Being online 20+ hours can easily use that much data dependant on what's using it.
Also the device(s) your tethered to will most probably be carrying out background processes such as updating itself / apps / updates etc.
Current Phone > Samsung Note 10+ 5G
Samsung One Ui 2.5 / Android 10.