Bot, Proxies

I bought a bot to instagram, facebook and twitter, followers, likes and comments on the mass which support said I needed to buy some proxies and here is my doubt, the accounts are all in Brazil, using private proxies have risk of them being blocked? to a demand of 10 000 accounts need to buy a list of how many proxies?

to be completely safe it's 1 Proxy for 1 account but you can also do 1 proxy per 3 accounts.