In short, according to you:
1. You did receive a form titled Notice to Owner;
2. You submitted reps.
You problem arises because, unbeknown to you before making reps, your NTO was incomplete and did not carry any information on the time limits for submitting reps. In consequence you missed the 28-day statutory deadline.
So, does this give you grounds to submit an out of time request to TEC and which box should you tick.
IMO, yes and the box which states you did not receive the NTO because you did not receive a NTO in its mandated form, therefore a NTO was not served.
Wait for others.