It’s become clear that in the week commencing 4th May 2020 the C79 certificates for the month of March were reissued as HMRC had either NOT issued a C79 to the importer for March already, or had issued them with the data for February instead of the March import entries.
In a posting from HMRC on 9 June their advice is to use the most recent c79 that you will have received – the one issued at the start of May – as this contains the correct information.
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