# IA: After POP, send VAT/tax invoice with collect reference **Batch:** 131 | **Sources:** Sign's R Us `190d901ad2ddc0da`; Saftech Andre `190c9e4840f0c70f`; FHS `191bcaadcf032a79` Pattern: client POP + "what docs to collect?" / "VAT invoice please" → sales sends human tax invoice PDF with collection reference. Collector brings that invoice. Do not rely on Ephraim "invoice attached" claims.