It seems the price is fair enough, +25 MMRr/game/0.00125btc. I got some friends doing this kind of service also, offer boosting MMR (3k+ and above), they're accepting paypal as their payment. To be honest it's really hard to boost up you're MMR when you're playing at SEA server with the team mates will pick carries. Cursing, trashing, feeding, blaming with these attitudes welcome to SEA server.
Sea server is really famous about the players which are known toxic on each game and indeed philippines is included on that which most countries called them as peenoise which is really embarassing but not all people or players are like that but most of then are.Its really hard to rank up to make team out of those people on sea server i think the price was just right.