Your form and what you are attempting is confusing. On the referred to form internally the main form is named ‘Filter’, the subform named ‘Form’ and the sub sub form named ‘Form’. Now while this can work it requires extreme care. Use more meaningful names.
Next is the SQL used in sub form ‘Form’. Here you never refer/compare values to the Filter table values you saved from the list box selections. This is a main problem and causes this to not work in any way. Now since you are using a Filter table and SQL to retrieve results, there is no reason (in fact it hurts) to have “Master” & “Slave” links on the sub form.
This may correct your immediate problems but I still question the construct of this form. If your intent is to just view data you are probably OK. If you are looking to update or enter new data you will most likely run into problems since you combine multiple tables in the query.
If you require further assistance on this SQL, please also provide further information on what this for is to be used for - inquiry, updating, both, other?
To hopefully further assist, I have re-attached your file with an added form -
CompanyCallingRevised. Take a look at it and see if this is what you are looking for. The major change is in actual SQL for the Company form selection.
Revised form sample: 20171207 CRM SETA Revised
If this answers your question please click on the (upper left area of answer).