You need to change the process to:
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As your Sales Quote is the basis for payment you can skip it and directly issue a Sales order instead. If the title would confuse your Customer change it to Sales quote.
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Because the Customer has already Paid you follow with the other steps, i.e. copy “Sales Order” to “Delivery note” and then to the “Sales Invoice” and record the “Payment” in the view screen of the invoice.
Strange that a tax authority would not accept a tax invoice and only receipts. You may need to consult an accountant, meanwhile you can provide a link to this tax authority’s website as it should be well documented.
Enable the relevant Inventory Tab Columns see example screenshot below:
