Welp Good for you
Been a while for me no ban and I'm 100% safo :d
There should be a Race glitch where you fall down with your bike and spin like mad to generate 50RP for each spin
Yes there is a limit but i have no idea what that was, but you could just reset and do it over again and you would gain extra rp then
I recommend using recovery services really, they're cheap and they're done by pros who have been in the game for a long time