Now I'm really confused.

I'm booked in row 10 for a flight from LHR T1 on Mon.

Now inside T-72, the plane is showing as 19A yet the seat map is for the old config with 22 rows and row 9 as exit. First row in ET is row 4 with 4B missing, also consistent with the old configuration.

I thought 19A was the new config with row 10 as exit??? Can I trust the seat map within T-72? Should I move myself to row 9?

Any advice greatfully accepted....