Just drop them a mail or simply call their customer care. They'll do it without any hassle. You're not asking for any upgrade. Its just network change.
Just drop them a mail or simply call their customer care. They'll do it without any hassle. You're not asking for any upgrade. Its just network change.
But before you upgrade let me tell you some negatives and positives.
Negatives
1) Acceptance issues comapred to visa.
2) High MDR charged by diners network to merchant and some offline merchants avoid these cards, becuase of this.
Positives
1) Wider lounge availability.
2) Faster transaction speed on merchants as observed my me.