how to prevent a crossjoin in fetchxml?

when running the following query:

<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false" aggregate="true">
<entity name="account">
<attribute name="name" alias = "company_name" groupby="true"/>
 <attribute name="bio_employeesworldwide" alias="TotalWorldWideEmployees" aggregate="sum" />
    <filter>
      <condition attribute="customertypecode" operator="eq" value="2" />
    </filter>



  </entity>
</fetch>

the results that i get are very accurate

however, i am trying to get more accurate results, by joining onto another entity and filtering by a a specific condition:

 <link-entity name="contact" from="parentcustomerid" to="accountid" alias="contact">

 <attribute name="bio_webuseraccountstatus" alias="TotalActive" aggregate="countcolumn" />

    <filter>
      <condition attribute="bio_webuseraccountstatus" operator="eq" value="3" />
    </filter>

  </link-entity>

as you can see i linked to the entity called contact and i need the bio_webuseraccountstatus = 3

the full script is:

<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false" aggregate="true">
<entity name="account">
<attribute name="name" alias = "company_name" groupby="true"/>
 <attribute name="bio_employeesworldwide" alias="TotalWorldWideEmployees" aggregate="sum" />
    <filter>
      <condition attribute="customertypecode" operator="eq" value="2" />
    </filter>
 <link-entity name="contact" from="parentcustomerid" to="accountid" alias="contact">

 <attribute name="bio_webuseraccountstatus" alias="TotalActive" aggregate="countcolumn" />

    <filter>
      <condition attribute="bio_webuseraccountstatus" operator="eq" value="3" />
    </filter>

  </link-entity>



  </entity>
</fetch>

when running the first script i get about approximately "x" number of counts per record, where as when i run the entire query, i get approximately 10-20x of counts per record

what could be causing this?

i am thinking that i am doing an inner join when i am adding the contact entity, but it seems like it's doing a cross join? what am i doing wrong?