Since u r dealing via mudah.my, i suggest you to get full payment from buyer before shipping out, to protect yourself if buyer goes MIA after you send out the parcel.

It is up to him if he wan to take the risk by paying full payment to you directly. It is purely based on the trust between buyer and seller.

However, buyer will have your personal banking details, so anything goes wrong, he can use this information to lodge a police report.