Answer: Someone stole Nur's Identity and applied for credit cards under her name.
Step-by-step explanation:
The most likely cause of this scenario is Identity Theft. This is where someone steals the identity of another and uses their details including their Social Security Number to access services (usually financial) or engage in crime using the name of the person whose identity was stolen.
Someone most likely stole Nur's identity and applied for many credit cards with the intention of using them and then passing the bill on to Nur to repay the debt.