HDFC Bank — checking credit card bill & payments without permission

My husband's account payment details and credit card bill is checked without his permission by mrs. Janvhi arvind pokharkar in supervision of her boss.. Working in chandan nagar branch pune. She is my sister in law but we won't give her permissions to check.. Please recognize the problem & give some solutions. A year & half back we have vehicle loan & after giving the installment we can barely have money to spend but she manages to get a personal loan of 2 lac on us. We have pressure of my in laws to get loan so we didn't react but we thought the bank will not approve the personal loan... As i resign from job due to pregnancy they don't give us a damn... We stayed at my parents house from then to now.. Please help & consider the problem and don't let the families destoyed due to this type of misbehaviour.. Please...