But the price of Gold is Even Falling now , How does someone will deal with you having that small amount ?
Use exchange as what others say above because I'm not sure if there are traders that will be interested in your 0.25 Gold , and for sure Scammers will Try dealing with you here having that small knowledge how to Convert your Coins when it can be trade in exchanges.
I can't believe this is a real offer, it might be a scam. At the moment, 0.25 gold tokens really cost about $ 60, but not 15
Scamming for 15$ here i don't think will Fit because OP won't risk His Account for 15$ , be realistic mate unless He is a Brand new account but for 15$? i still doubt it.
Edit:
Yeah a Tagged Scammer Dealing like this ? He had been scamming people yet pretending to not knowing how to use exchange is a Red Flag.