how to apply?

Koperasi loan usually only applicable for government servant.

I'm sorry for just shooting you and not explaining the maths.

Then you need to calculate the fees to apply for the second loan as well.

Processing fee : RM250
Stamp duty (0.5% out of RM10000) : RM50
Takaful (assume RM50) : RM50
Total fees : RM350

Interests for 3 years for first loan : RM10,000 x 11.88% x 3 = RM3564
Interests for 3 years for second loan : RM10,000 x 8.5% x 3 = RM2550
Total savings on interest for 3 years = RM1014

Minus Early penalty fee (assume what you said is true) for first loan = RM200
Minus Second loan's processing fee = RM350

Total savings = RM464
Total savings out of loan amount = 1.55%

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Lets consider the variables :
1) This is assuming your early penalty fee is RM200
2) This is assuming your takaful is RM50
3) This is assuming your bank will give you FULL rebate of interests for the whole 3 years

Is it really worth your 1.55% ?

What I'll do :
1) Find out how much rebate on interests I'll get from the first lender
2) Find out how much is the early penalty fee from the first lender
3) Find out how much is my takaful charge from Al-Rajhi bank

And redo the maths. If it's worth your time and effort then do it. Else just go through it for the next 36 months.

Cheers.