As for the current status, i think you are still legal in this country for 28 days from 16th Feb. Any more than that will be illegal stay.
This is because you applied for your HSMP when your WP was being considered, which means as of the date of your HSMP application, your status is frozen on your WP status (ealier LTR).
So the time of new 28 days comes into effect from the date of your HSMP rejection letter, and not the date of your WP consideration failure.
That's what i think, so i will base my further comments based on that.
But wait for John and others to see what they say on this point. If they say this above theory of mine is wrong, then you may want to ensure that with HO and get going with your life - i.e. fly back home ASAP.
Meanwhile, my HSMP was rejected on 13th Feb for want of P60 and bcoz they were unable to verify earnings for 6 months
Since you are currently legal in this country (at least for a couple of more days), why don't you re-apply, since your rejection was anyway because of want of P60 which you did not supply earlier on.
That way, if your HSMP succeeds, you are fine to continue and your life could completely change again!
Its a blessing that you cannot appeal
. No worries, just re-apply - a fresh HSMP application.
Since you are in status (28 days rule), you can do that.
But i take it you cannot apply now, since your passports are with enforcement team. I don't know what that team is all about.
But can you chase up on that and ask them to give your passports back soon, so you can re-apply for your HSMP. Your time is running quick, so do it soon!
If that new HSMP fails, then you will have to go back to your home country, but lets not think about that scenario now. Use the legal stay time that you currently have (until March 17th?) to apply for a fresh HSMP application.
If my theory is correct about the dates, then you are legal in this country for some more days, so there is nothing to stop you from applying for a fresh HSMP.
Go, get your (and your family's) passports soon, and get going applying for a fresh HSMP.
Ensure you note down clearly why your ealier HSMP failed, and collect all that missing evidence/ information and apply a new application ASAP, this time including your P60.
Best of luck.