Free membership twitch prime ? how too maintain a profitable farm?

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So i recently came back to the botting game. it has been a while and as ive noticed much has changed since 3 or 4 years ago. 

bonds are currently 5M+. And the scripts available on the store have either high reqs or don't exceed 400k GP p/h. 

so the point is that earning the bond back, purchasing a proxy, scripts etc isn't profitable for me at the moment. 

now i sometimes like to scout around runescape to see what my partners in crime are doing and ive come across quite a few interesting methods. with people running 20-30 accounts at the same time. ofcrouse this could be multiple people but i don't think so. 

these accounts ive found are around 20-40 combat and they do not have anything other then witches house, waterfall,  and a required Stat for the method they are doing. out of my own personal experience this will result in a ban quite quickly so i assume that this person is suiciding them. now i can not understand how this can be profitable so my question too you guys is. is there a way to gain free membership ? i have tryed to make a twich prime account all seemed well but once i got to the point where i wanted to claim my reward it said there wasn't any reward too take. so is twitch prime a thing off the passed? if yes please do tell if not please do tell aswell. 

i have also read about the reffer a friend method. i have created a account with the refferal link which has not yet been used. if this would work this would halve the cost each account and would change my game quite alot. 

the thing that i thought off straight away tho was that if i would refer a "friend" these accounts would be "linked" together so to speak. and in case a ban would happen they would both go down. if you have experience with this aswell i would like to know

also if you guys know any other methods that have worked for you please don't be afraid too share i am struggelin out here