well its not that hard
first say you got banned right you can just make a new account if you got ip banned well then heres how you can come back
if you have a router and a static ip you can easily turn your router off for say 5-10 minutes then when you come back on you have a new ip and then you can keep playing
i did this many times like when i couldn't make more than 2 accounts on the same ip i just did the same thing and i could make 2 more so i thought this would work if you got banned