need an insight from one of you good fellows.

Issue.

Woocommerce shop which on occasion gets multiple orders from the same customer on the same day. Customer pays full shipping charge on the first order. I have added a shipping method called (combine shipping) at $0 charge for following orders.

The issue that I face now is that random clients are selecting this (combine shipping) method in order to get free shipping "one wishes lol".

It consumes precious time as I have to advise them that they have selected the wrong shipping option.

I'm seeking a solution to this.

The perfect scenario would be:

When a customer selects the (combine shipping method). A dropdown field appears with the following field(s) for customer to complete:

1. Order ID (placeholder text that states: what order ID to combine it with)

Conditions where:

• Presumably, the customer is "logged-in" to the website and a record of the previous "Processing Status" order where paid "shipping method" is true are able to be displayed.

If filled field(s) does not match.

• A message that states it does not match.

I hope this makes sense :)

I look forward to hear any options.

Cheers.