Can I do this to increase my credit limit?

Hello everyone,

I want to buy an Apple product, but my SBI credit card limit won’t allow me to spend that much. I don’t want to opt for EMIs as they attract unnecessary charges.

I tried contacting the bank, but since it’s SBI, they’re unlikely to increase my limit.

My question is: Can I add extra money to my credit card (prepaying an amount) to increase my spending limit? Basically, can I pay extra to my credit card before making the purchase so I can spend more than my current limit?

Please help!