FYI reselling proxy accounts is not a thing, so you will have a very tough time doing that - it's not a sneaker bot. Proxy providers have plenty of security measures implemented that are meant to target fraud. However, if you believe that the one you're after wants too much of your personal information, be sure to check out other providers as well.
I did, you have no idea how many service I tried. They have a good service (if they really have 100mil IP's) and pay-per-use plan is good for me
vip72.com - cheap but low number of IP's and some of them bad
911.re - ceap, preaty good number of IP's, but some are bad, and I have problems implementing multilogin stealthfox with them, for some reasons I get ssl error, mimic works fine so can't verify on firefox
socks5.net - low number
usocks.pro - low number of IP's
faceless.cc - some are bad and low number
luxsocks.ru - need to pay 500 to get access to a very low number of IP's
proxy.shop - I toked 3 proxy, 3 different country's proxy and actually it is a digitalocean or other server
packetstream.io - they say 10 mil IP's, and when I try to get a cyprus one , surprise, no IP, when I ask to be transparent they say "we do not keep an evidence of how many IP's are in a country, but yes, for cyprus the number is low 800". How can they be 800 if I get error all the time to get one. It is 0
shifter.io - they said 60min stiky, but this is how it works, you get 10ports all of them are assigned an IP immediate but when I tried it the IP was bad, so I wanted to change the IP...well you can't, you have to wait 60min for it to change automatically

geosurf - good but some of the IP's are bad, that is not a problem but the price is. I do not own a multinational company, just a few ads to verify
now tied a new one, just paid, did not try yet (I will try and let you know)
Looking at what I wrote I realize that all of you say vip72 ,911 ,usocks ,socks5 ,faceless crap...but tell you what, they may be crap but the service is transparent, you know how many ip there are, you can search for a specific ip (maybe they have it, maybe not), but you know 100%. With all the other million ip pools you know nothing, nothing is transparent, they can have 10 and say we have millions