I can get a vcc card and make one for 99 cents. 10 bucks is ridculous.
Premium account for 2-3 months for 99 cents? You're either bad at math or being ridiculous. Either way, good luck with that! I would take his $10 offer if I were you. Obviously use escrow if you don't trust him.
Spotify had been offering 3 months Premium for 99c on their website since March but it did just recently end. They were fighting off Apple's free months of Apple Music.