Issues with Lesson Credits After Cohort Transfer

I have not received my credits for three completed lessons, and it has been over a week. For context in case this is important - I was moved from Cohort 18 to Cohort 19 after completing three lessons due to time conflicts (not having received the credits at that time either). I am now out of credits and unable to complete the final lessons. Please let me know how this can be fixed. Thank you!