Can I exchange my Apple Watch for a bigger one?

Hello

I purchased iwatch series 6, 2 weeks back which is 40 mm and I a not satisfied with the it cause I think I chooses the wrong size.... I think I should have gone for 44 Mm..... is there a way I can exchange it to get 44mm by paying additional fee...

please let me know

[Re-Titled by Moderator]