Dynamic rows in a table issue - also relates to having elements with the same element name

In my adaptive form I have a table with dynamic rows. (AEM Forms 6.2 SP1)

Each row has two text fields, I want to bind the field to my XDP. But when I do so and submit I only get one value:

                <SupplierDetails>
                  <SupplierName>fdsg</SupplierName>
                </SupplierDetails>

I expect the following:

                <SupplierDetails>
                  <SupplierName>fdsg</SupplierName>
                </SupplierDetails>
                <SupplierDetails>
                  <SupplierName>xv</SupplierName>
                </SupplierDetails>
                <SupplierDetails>
                  <SupplierName>sg</SupplierName>
                </SupplierDetails>

Has anyone else encountered this issue?

Any help on this would be great.

Thanks!