Is there any credit cards that can be make use of to pay school fees? I am able to pay the bills but just wondering if I am able to reap any benefits like air miles etc..?

Using ipaymy.com is similar to using cardup. Usage fees are the same,except that they will run some monthly promos that will bring down the usage fees to 1.99%. You save money while earning miles at the same time!

Yes. Use cardup.

https://cardup.co

Note: They charge 2.6% service fee!

So apply for Bank CC such as BOC Family or UOB one card and make sure your cash back % is more than 2.6% to earn some cash back after deducting card up 2.6% fee:

https://blog.cardup.co/best-cashback-credit-car...

Note that there's a min services fee:

For credit cards issued in Singapore:

A 2.6% fee applies on each transaction, subject to change for promotional rates. Do note that for payments of $130 or less, a minimum fee of $3.40 applies.

For credit cards issued outside of Singapore:

A 3.3% fee applies on each transaction. Do note that for payments of $1,000 or less, a minimum fee of $33 applies. Promotional codes are not eligible for use on payments made with credit cards issued outside of Singapore. 

Source:

https://carduphelp.zendesk.com/hc/en-us/article...

If you're keen to earn miles rather than cash back, you can refer to Mileslife blog as their website to find out more.

Cheers!