@dymesgirl My guess would be the strategy works something like this;
Fix a majority of the mortgage with minimum repayments then put a portion (for example 50k) in revolving/flexi account.
Direct all income and savings into the revolving account to pay it off asap. Use a credit card for all expenses throughout the month.
On the last day of the month transfer money from the revolving account to pay off the credit card and avoid any interest.
At the end, of 1 year you would have paid of 50k via the revolving account and the min. Repayments of the fix terms. When you refix, empty out the revolving credit to pay a lump sum towards the principal of the loan and start repaying the revolving account again.
Rinse ans repeat. *
- not a mortgage broker or personal financial advice.