We understand the importance of having a working phone. Let's look into this. What specific issues are you having with your Mobile Hotspot? Is your phone updated to the newest software? How long have you had this issue?
This is the 3rd new phone they have sent me. I've had this issue for about 3 months now. I'll get a random error that says no internet connection also. It's only my phone, my husband has the s10e also and no problems at all. All my kid's phones work fine too.