Summary:
On a level 19 ACN, I was given the level 20 Levequest "Treevenge" by Nyell in Quarrymill as part of the "Leves of Quarrymill" quest. Upon completing the leve, I was unable to complete the leve since I was not yet level 20. I returned to Aleport to get more level 15 leves from Orwen, and found I could turn in the Treevenge leve, despite the help text instructing me to report back to Nywell in Quarrymill.

Thread Title:
Possible Levequest completion

ISP:
Verizon fios.

Platform:
PS3

Type of Internet Connection:
Fiber

Internet Connection Speed:
Enough

Date & Time:
11/1/14 19:30am EST

Frequency:
Once (Did not reproduce)

Character Name:
Gahoo Yah

Race:
Hyur M

World:
Hyperion

Class/Level:
19 ACN

Area and Coordinates:
Quarrymill & Aleport

Party or Solo:
Solo

NPC Name:
Nyell & Orwen

Monster Name:

In-Game Time:
Unknown

Steps:
Initiate Leves of Quarrymill quest from NPC Nyell at level 19.
Complete given leve of Treevenge (not sure if this varies)
Head to Aleport and talk to Orwen, and collect reward for Quarrymill leve Treevenge.