Merchant Quest

I was wondering if anyone has any idea if the quest "Master of Part Time Jobs" can only be received once? I had already received it randomly after going a bit further above 101 completed Part Time Jobs, and I've been completing more to see if it may come again. If anyone has any idea it would be great to know.

I have a theory, although it's not confirmed, obviously.
A: You have to reach advanced status of a different PTJ-type to receive another quest.
B: You have to switch destinies than turn back.

I'll keep going on this church ptj while I wait for someone to figure it out >< just in case, and I'll inform you if I get another quest.

You could do the healer's PTJ in Qilla. That also rewards Holy Water and only requires wool 100% of the time.

Alright thanks for the tip, I might try that now since I'm getting tired of this one xD

Scratch that, your theory is wrong, I just got another ^^ from finishing the last one I was going to do. I guess it just appears a while after you finish one ptj.