Will the DBS Altitude Credit Card earn me 1.2 miles for my phone bills? Are there any better credit cards for monthly phone bill payments?

Have been using debit cards and setting up Giro payments for my Starhub bill so I'm very new to making my monthly phone bill payments with a credit card. First, do I stand to earn 1.2 miles for these Starhub/Singtel phone bills by using the DBS Altitude? Second, are there any better credit cards to make my monthly phone bill payments? Last, I would appreciate any tips for a new credit card user!