Please correct

[gozuhair]

Hi All
I will really appreciate if someone correct the below letter.

I hope you and your family are in good health and doing well, I am very sorry I didn’t attend your phone, may be I was sleeping that time, I will call you after Eid holidays, In addition, EID MUBARAK to you and family also.

[tedtmc]

I hope you and your family are in good health and doing well. I am very sorry I didn’t attend answer your phone. may be Maybe I was sleeping at that time. I will call you after Eid holidays, In addition Lastly, EID MUBARAK to you and your family also.

A sentence should end with a full-stop.

not a teacher

[J&K Tutoring]

Agree with tedtmc with one exception:

...sorry I didn’t attend answer your phone. should be answer your phone call or simply answer your call. Without this distinction, it sounds as if the writer was in the home of the message recipient and didn't answer the recipient's phone.

[gozuhair]

Great. Thanks