Trying to send 1 remittance for 15 Invoices which were paid in one payment through bank how do i create 1 remittance instead of having to send 15 remittances?

HiAliT, thanks for joining the QB Community 🙂 - to do this, click + New > Pay bills > Select the payment account and date > tick all bills that apply > Check that the total payment amount is correct and save. This will create a single bill payment and will mark the selected bills as paid (if the payment covers the total open bill amount). You can locate the bill payment by clicking on the magnifying glass in the corner of QuickBooks > click to open > save and send.