did we need to used credit card to purchase MJ stuff?

yeah you need an credit card online if you order it offline like barnes and noble but in the store no you dont have to use an credit card if you dont want to you can use cash or credit if you go to the store

You need a credit card :/
My parents say that to me too so I'm gonna ask m aunt for it.

If you buy items in a store you can pay via cash (you know that of course) or with your credit card.

Online depends. Some online stores only accept credit cards and others mostly accept credit cards, PayPal, giftcards (coupons) or you can pay via bill. The bill is sent along with the products you ordered.

A site I recommand you is Amazon.com (or co.uk).
It is very reliable site + it has a large variety of Michael Jackson merchandise, (for instance). The price is reasonable as well.

As far as I am concered Amazon accepts credit cards, money orders, giftcards, etc.

A little hint: It is easier to persuade your parrents in buying something when you are in a store. As I see you live in Malaysia? So it won't be hard for you to find an appropriate shop. Most parrents don't rely on online shops!

I hope that I could hepl you in a way. Good luck!
Peace, love and Michael.