Please read for any errors. And correct them.

The premium on your disability insurance policy is overdue. Don’t let his valuable policy lapse. If you become disabled you will receive a monthly income from this policy. This disability policy provides importance security for you and your family.
If there is some reason why you have not paid your premium, please let us know. If you are having temporary financial difficulty, perhaps we can work out a different premium payment schedule.
If you send us a check for the overdue premium before the 30 day grace period expires, your policy will be reinstated without any interruption and protection.

Typo in sentence 3.

Note hyphens in "30-day-grace-period

Is the typo disabled.

I corrected the part with the hyphens

"Don’t let his valuable policy ... "

What needs fixing?

o ok thank so much change his to this

Here is the corrected text:

The premium on your disability insurance policy is overdue. Don’t let this valuable policy lapse. If you become disabled, you will receive a monthly income from this policy. This disability policy provides important security for you and your family.

If there is some reason why you have not paid your premium, please let us know. If you are experiencing temporary financial difficulty, perhaps we can work out a different premium payment schedule.

If you send us a check for the overdue premium before the 30-day grace period expires, your policy will be reinstated without any interruption in protection.