Mr. Magoo (2019)

S1E41 The Letter to Santa Claus

Title: The Note for Santa Plot: Magoo accidentally omits a present for Mr. Cat in his Santa letter! To fix his mistake, he decides to follow Weasel, who is dressed as an elf, but ends up being led to the AeroFizz instead. There, Magoo mistakenly believes Fizz is the one overseeing Christmas correspondence.