They Powerlevel then hack you...
UPDATE: foolishly my email password was the same as my RS PASSWORD (stupid I know) my account was hacked within 24 hours of the powerleveling taking place, the company decided to sell all my items and trade themselves the gold, then proceed to bot on my account to earn them gold, reset various passwords, hopefully I’ll have my account back when they log out... Was bored of doing ranged training, so did some searching around and came across these guys online, prices were very reasonable and they seemed fairly trustworthy, they were power leveling on my account for 36 hours total and achieved the levels I paid for, all I can say, is they did exactly what i asked them to do with 0 hassle, will use these guys again. PS, i'm definitely not a bot :)