When I try and import the prices, it adds them as a new (second) price and doesn't replace the original price (these products only have a single price field). I can see in the documentation there is a price_delete field, but I cannot seem to get the import working no matter what I try. When I refer to the documentation at https://csvimproved.com/support/import/203-virtuemart/1553-virtuemart-prices-import you suggest using as an example to Update Prices:
"product_sku";"shopper_group_name";"product_currency";"price_quantity_start";"price_quantity_end";"product_price";"product_price_new" - I am stuck with log errors saying "Missing Fields" because I do not have a field for "product_price" as the website and POS software run as separate price lists.
Sorry I have tried to look for answers but I am just stuck now

Thanks,
Aaron