My personal experience:
1.Interbank Transfer is most expensive with Maybank @ RM2 (Premier Savings ac).
2.MEPs withdrawal at OCBC (from MBB) is RM4.

I thought all interbank withdrawal at MEPs were at RM1. Is it standard for for withdrawal at foreign bank at RM4? What about foreign bank to foreign bank?

Is there a single transaction limit using duitnow transfer to other bank using desktop Maybank2U online. I tried to transfer RM10,000 but the amount was truncated to RM9,999 each time. My daily limit is more than that.