Disgusting attitude from call centre

I opened up a pick pay store account. Everytime you buy over R4000 they call you, which i think is great. On saturday, i didnt hear my phone in my bag and they immediately blocked my account. when i called them, a very rude lady told me that she has to ask me 5 security questions, which i was fine with, but then she went into all my finacial accounts and wanted to know about each and every account i had, from my bank accounts, to my donna clair account etc etc and how much i am paying every month and what my limits are with all these accounts. personally its none of pick and pays business how much i pay other stores and what my credit limit with these stores are. pick pay should focus on their own company. My account is always up to date and always over pay what i owe. after answering all the questions which was definately more than 5, my card is stil blocked. very poor service from pick and pay.