This task is low priority, and for when Civi tools enable wider staff to edit TY emails.

Amber and @SHust noticed that Contact ID: 5018527 's monthly conversion TY email is formatted a little oddly:
you did something extraordinary: you donated, and then decided to set up an additional 4,50 C$ sustaining gift on top of that. This donation will be debited on or around the 18.º of the month

Action items are to format the currency for standard English and to replace the º with th for the date ordinal.