Waiting for my SIM

A new phone I’ve got,
Which cost quite a lot,
For no doubt it was not,
Bought on sale.
The chances are slim.
The prospects are grim,
For my SIM being in,
Today’s mail.
Should I call to say,
Is my SIM on its way?
Can you send it today,
Without fail?
They’ll hear my plea,
Maybe feel sympathy,
But alas, it will be,
No avail.
And I’m feeling glum,
For again nothing’s come,
And my SIM travels on,
Speed of snail.