SMS Issue: Incoming stored on one
 

I have issued several incoming SMS stored in one place, the detail as follow:
1. at 11:10 : I received one sms from A
2. at 15:30 : I received one sms from B but theis sms received at same folder with sms A (like continue of SMS A)
3. at 18:25 : I received another sms from C then this sms again at above sms B
4. at 22:00 : I recived another more sms from D more this sms at above SMS C
5. The day after : I received again sms from E this sms at above SMS D

All become 6 or 7 sms in same place, but another sms not as like this.

Advise me asap if you find same issue about the solution

Regards