Regarding purchasing a iphone on contract basis.

Hello Ajmalista!

Barclays Bank no longer offers a co-branded Apple credit card. The card was discontinued several years ago and existing account holders were offered the opportunity to move to another Barclays rewards card. If you have questions concerning an existing Barclays account you’ll need to contact their support team using the phone number on the back of your Barclays card.

Apple offers a co-branded credit card that is issued and serviced by Goldman Sachs Bank. You can learn more about and apply for the Apple Card MasterCard at the links below,

Apple Card - Features - Apple

How to apply for Apple Card - Apple Support

I hope this is helpful. Good Luck!

Please read this excerpt from:

“Can I buy an unlocked iPhone 14 with mont… - Apple Community“

“If you cannot buy the unlocked version with installments then you might be able to call Goldman Sachs at 1.877.255.5923 and convert the one time payment into installments.“

You may also find these links helpful:

Products you can buy with Apple Card Monthly Installments - Apple Support

How to view and pay Apple Card Monthly Installments - Apple Support

Good Luck!