Wtf? That sucks, I recently got some mass proxies to try out too, theyre so cheap, have 15 accounts on them, 1 account = 1 IP, haven't had this bad a result, 6 of them want PV.
I tried to verify 1 of them using EB and a real sim card, got the code, put it in and then instabanned.
5 more are still awaiting PV so I'll get to them tonight. Do you know what caused some of your accounts to be disabled? How have you found highproxies? I'm using sslprivateproxies atm, they work pretty well but a little pricey compared to other providers.