No sale, no commission!
Although real estate agencies are mandated by an owner, who wants to sell his house or apartment, you must be aware that they do not work for this seller! In any case, not primarily.
Agencies work primarily and especially for the buyer, because it is he who will pay the famous agency(Marina One Residences) commission. Admittedly, this is included in the price you will pay, but they will not be able to collect it until the moment of the transaction. So no transaction, no commission!
Which means that you have their destiny in your hands, and that implies that they will do their utmost