Are you trying to purchase using different Apple ID without credit card details? Here is the way for add new Apple ID for purchase with same credit card.
Now from different devices (iOS device or Mac) and Different Apple ID you can purchase any think using same Credit card detail without out re-entering Credit card data in all new apple ID, Using that apple ID you want to purchase from iTunes, App Store. Now you have a full control about new purchase made by your family member or Child. So you can keep your eye on new purchase and more about your account by new Apple ID for purchase with same credit card.
And save more money by keep personal finance app installed your iPhone, iPad or iPod Touch.
Note: This option is only available in iOS 8, iOS 9 running device. And for Mac devices running on OS X Yosemite, os x capitan or later new.
Steps for Add new Apple ID for purchase with same credit card iPhone, iPad
Step 1: Go to the Setting app on your iPhone, (First/ Primary Apple ID created with Credit card details).
Step 2: Add new inside your Primary Apple ID, Tap on iCloud (With Apple ID).
Step 3: Next, Tap on Family.
Step 4: Then, Add Family Member (For your Child create new Apple ID or add Existing Apple ID).
Note: Under 18, automatically applied restriction on purchase, App and more. That will protect your child security all time.
Step 5: Enter Valid Apple ID for invitation. If you have in side the saved contacts detail You can see list of Apple ID.
Step 7: Now you have a two option for complete or add apple ID for use existing credit card details.
Ask to your family member for Enter password within your device, Where setup for add apple ID is running.
Send Invitation: This option send invitation for complete setup on your family’s personal device running on iOS 8 or Mac OS X Yosemite (10.10) or later version. Go your mail and Complete invitation request by your family member.
Now, Share your personal and Family member’s experience on add new Apple ID for purchase with same credit card. Have you any confusion and query on above steps feel free and share in to comment box.