Hi OD, belated happy birthday & I second the advice from Raliced. Good for you posting here before sending. I think the two themes are motive and tone. Part of your motive was fine, part not. And best to notice & lose the 'not' part.
So it's okay to respectfully raise a scheduling matter, but not to make 'digs' to 'show' you are still angry. Best to communicate from 'adult state' rather than 'child' if you have read Eric Berne's stuff? A WW probably isn't going to want to reconcile with a 'petulant child'..
Are you going to redraft & post again??
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus