incorrect English

Hello. Using Opigno 2 for an English teaching site, it is really problematic that there are mistakes which we are unable to do anything about and which our users see. Dates show up incorrectly: always with -th, so 1th instead of 1st, 2th instead of 2nd, 3th instead of 3rd. Why not just put the number without the ending which is frequent usage? For example, April 21. Another example is the default message for users signed up to a learning path : "...take part of my learning program" instead of 'take part in'. Will you correct these?