Twitter is locking accounts immediately after unlocking???

Anyone else is having this problem? Many of our 60+ accounts got locked yesterday. When I am unlocking with phone call or sms it unlocks and get locked again.

I don't have so many SIM cards and it even useless to unlock so I am appealing by email. Two of big accounts got locked for the 3-4th time today.

Their response email is:

"Hello,

Your account is now unlocked, and we’re sorry for the inconvenience.

Twitter has automated systems that find and remove automated spam accounts and it…

Twitter is locking accounts immediately after unlocking???