The use of "trust you to...'

[Tom]

Hi

Could you please tell me how and when we use this expression? Is it ironical?

Trust you to...

[Mister Micawber]

.
Like many phrases, it can be used ironically, Tom, but it is not intrinsically so. It is often used as an expression of gratitude.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber

[Tom]

Many, many thanks, MM.

Could I request a few examples in both senses, i.e gratitude and ironical?

Tom

PS: By the way, is the red sentence correct and natural, in particular the use of the words 'gratitude' and 'ironical'?

[Mister Micawber]

.
Irony exists in the context, Tom.

Trust you to remember my birthday!
Trust you to forget my birthday!
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber