How can I throw a message to customer when removing an item from the shipping rate list?

How can I throw a message to customer when removing an item from the shipping rate list?

Ryan_Mc
Explorer
46 0 17

There seems to be a limited number of methods that permit messaging users, most of which pertaining to line item and shipping discounts but in this case, when I call shipping_rates.delete_if, I want the user to know why they're only seeing expensive, courier options (their item has a Li-ion battery).

Any options here?  

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