We have our banking account at Habib Bank.

Answer

How could it ever be possible to deal with a Shiah bank? A fundamental article of Shiah belief is to hurl vituperation against the Sahaabah. They specially target Hadhrat Siddiqah

Aishah (Radhiyallahu anha) for the slander of zina. Their hatred for the vast majority of Sahaabah is perfect satanism. They single out Hadhrat Abu Bakr, Umar, Uthmaan and Muaawiya (Radhiyallahu anhum) for their vilest vituperation.

What answer will a Muslim have on the Day of Qiyaamah if asked by Rasulullah (Sallallahu alayhi wasallam) about the dealings with such vile haters of those who were the beloved of Nabi-e-Kareem (Sallallahu alayhi wasallam)? It is not permissible to deal with this Shiah bank. There are many other banks. There is no pressing need to operate accounts with Habib Bank. If there is perhaps a Gupta Bank, then open an account with the Guptas.