"Teen Mom" alum Amber Portwood is pleading for information about ... She ultimately served time in prison for violating her ...

Portwood — who first appeared on MTV’s “16 & Pregnant” in 2009 — has been estranged from the 16-year-old for years.

Multiple failed drug tests and a lack of commitment from Portwood led to a prison sentence. She served 17 months of a 60-month sentence. Amber was released in 2013. Amber’s daughter, Leah ...