Dont worry, this works fine. The bitcoins will appear next time you start your wallet application. Bitcoins are not actually received by the software on your computer, they are appended to a public ledger that is shared between all the devices on the network.

When I am on the Bitcoin transaction, I notice that I always have to waith 10 minute but I am really dont know why I have to wait? Is there any special reason for it?

You can find all information about this process at this link: https://www.buybitcoinworldwide.com/en/buy-bitcoin-credit-debit-card/ bro

I have some Bitcoins but I havent used it for any payment because I dont know how to use it so how difficult is it to make a Bitcoin payment?

Bitcoin dont connect with any currency so why does Bitcoin have value? 

I am a new to Bitcoin too and I havent got my first Bitcoin. But I have heard that I must create a master card and then I can buy Bitcoin by using my msater card. Is it correct, bros?