Target National Bank 4 years after the case was dismissed without prejudice, i was reported to a collection agency for the amount of the dismissed case. Internet

I am afraid of retaliation, but i have proof from the local court that this was dismissed without prejudice in 2008.
St. Joseph county, indiana circuit court
cause no. 71C01-0801-CC-0037.
filed july 3, 2008.

i also suspect that if this is relating to new charges, that my mother may have made these charges under my name. her name is Patricia Johnson, and she lives in Virginia and works for 7-11, and since this is all i know about her, why would i authorize such a thing?!
Alright thank you very much.