I would definitely lose the period after "Thanks", and you might also swap the period after "Hi" with a comma. Do you normally use "Hi" or "Hey"? "Hey" is more informal in our area, but not sure about your vernacular. You might also drop "please". I'm sure you don't mean it like this, but could be read as if you're rolling your eyes while saying please. Like, "Could you please take out the trash for once." Lastly, you might consider not mentioning "going back" to what he was doing. It emphasizes that he's been neglecting them. Focus more on how much the kids will appreciate it going forward, not how much they've been hurt. Same with them missing him.

My version would look like this:

Hey WAW, could you call the kids every day, even if it's just for two minutes to tell them you love them? They love talking to you smile

Thanks


...I use a lot of smileys

Me 38, WAW 30
D11 (former marriage)
S2
T 8 years
M 3 years
BD 8/20/23
S 8/20/23