Do you have a Realtor representing your interests?
Or did you make the offer through the listing agent (L/A)?
Normally the L/A has a fiduciary duty to present all offers. However, in some cases (REOS) the lender will want to give the property some time to "season" on the market. Meaning that the lender (owner) may have asked that the L/A "collect" the offers so they can be considered at one time.
This makes comparing the offers easier. In some cases being first is not being "best". That is why working with a buyer's agent may "help " you. It is not uncommon to have listings, properly priced and marketed, to be in a "multiple offer" situation, and in that case you need a seasoned Realtor to help you"wine the listing" if that is what you want.
If you are represented by a REaltor OTHER than the L/A,. then they should be able to find out what is going on.