Refinance doesn't increase the number of loan , so I don't think it applies to LTV 70%

I suggest that to refinance a loan, do more calculation and ask yourself the following

1. What am I going to gain to save ?
2. If refinancing can allow me to draw out more money, how would I use the extra cash? Is this the best option for me with such interest rate?

Refinancing involve new agreement, stamp duty, valuation fee, etc (assuming there is no lock in period). Don't just do it to save RM50-60 a month. Even if the current rate is slightly higher, the better option is to find a way to pay off faster. Furthermore changing from semi flexi to full flexi is not really worth it in most case unless the rate is also quite different. For semi flexi, you still can withdraw money from the advance payment only not as flexible or easy like the way it is done with full flexi, some banks charges monthly fee on full flexi somemore