Haha my calculations are accurate. Hahaha please read up before you comment.
18% late payment charges, are on annual basis. I once had a late payment charge, not sure which bank. They charge on monthly rest (1.5%). So, let's say i owe them 7k for late payment. 7k, with 1.5%, is RM105. But remember, not everyone pays late. I always pay on time, only that one time was because I forgotten about the statement date, since it's my first time using the card. I got it waived, changed the statement date to sync with all my other card's date.
Let's take it for bigpay now. Rm7k. Most companies such as Airasia, has a very aggressive expansion plan. Our funds represents liquid cash, needed for expansion projects. Yes you can say bigpay is still small, with a small customer base. That's why they are expanding this business. Their aim, is definitely to reach out the greater market. You may own a maybank card, i own a stand chart card. But together, they have 2 bigpay users as their customers.
As things stand, Malaysia has approx 10.3mil credit card in the market, average of 4mil users (below 3k is 2 cards only) but surprisingly, we have almost 36mil card-based e-wallet (prepaid card) users. This means, on average, everyone has 1-2 prepaid cards. I believe this number includes foreigners and etc, just for Malaysia market. Prepaid card is a growing business, growing faster than credit cards + debit cards combined.
If Airasia taps into the e-wallet market and holds 10% of those total, they would have 3.6mil users. If every user reloads average of 5k, they would have RM18bil liquid cash to spin. Airasia is in a very volatile market due to global oil prices. Though they lock the oil prices, they still need to pay contract price when it's due.
Also if you look at the 2016 statistics, we have RM2.7bil overdue credit card balances, representing RM40.5mil finance charges on monthly basis, for various banks. Divide them into 5-6 banks, you barely have 8mil per bank. 18bil per month, with 1% transaction fee, is 180mil, or 36mil per bank. Each banks earns 44mil.
If you see my calculation, what do you think. 18bil revenue less 1%, per month, even throw in FD, can earn 44.5mil on a monthly basis. And that is clean income for Airasia alone.
For you to say my calculations are way off, is rubbish. Airasia is earning way more than bankers themselves. And in a volatile market, with 17.82bil to spin, this represents a more lucrative income than banks.
Your calculation has alot of assumptions. Firstly you under estimated how many people live of by paying credit card interest. I would say more than half of my friends do not pay full. Credit card debt is one big part of their income and I love people having the debts. Else how do you think banks can afford to dish out 5% cashback, promo and stuff.
And for every top-up, BigPay has to pay ~ 1% as the merchant fees. This would already offset whatever you have in your BigPay card that supposedly earning them interest.
And trust me, the average per-card across BigPay is definitely less than 5K per card. You are just plucking figures from the sky. I don't know the exact figure but I've deal with prepaid card industry before, a huge chunk of the card's balance are 0 or almost 0. Majority of Malaysians would only top up when they wanna use.