Question for GRAMEENPHONE CENTER (GPC) - Dhanmondi

Just dui din age amr wife er purse honda theke chinthai hoye gese n still her sim card is on....n ami ato busy j akgon jeye oi sim card tulte parbo na bt oi sim a amr wife er shob rokom er bank n all message ashe so its risky coz they r still using her sim...So is its possible to deactivate her sim card for few days only???