I'm not sure about cash deposit, but you can do it through Maybank2U, using payment function and look for Maybank term loan. The redraw can also be done through Maybank 2U on the loan tab

As to your standing instruction, you will need to see if it continues or it stopped, I believe the default setting should be continue. If you want to stop the standing instruction and for the instalment to be deducted from advanced payment, just give a call to the bank and they can switch it for you. I was lucky to have a very reliable bank officer who would advise everytime I call up to find out. Not the loan officer, but the bank officer in the branch where my loan is.