Does anyone seriously expect a warranty paid for by cash to be legit?

I mean seriously?

Sounds like Arthur Daley..

If he runs this part of the business in such away then its pretty obvious he is a rip off merchant

I wonder if posters would be making similar statements if the OP had originally written "Plumber wants paying in cash"

Or would everyone simply think "I'm geting it a bit cheaper cause he's avoiding paying tax on the transaction" & give him cash willingly.

Obviously this is likely to be the same for this particular dealer but to be on the safe side simply make sure you recieve an invoice for the goods (in this case the warranty) at the actual price paid.

Simplez

I wonder if posters would be making similar statements if the OP had originally written "Plumber wants paying in cash"

I do not see the connection the plumber will do some work that you can see and check the case above the OP receives maybe at the best a bit of worthless paper.

He is going to receive a piece of paper he is paying for it by cash.

Put the cash in a dedicated car kitty. It's the ultimate warranty; guaranteed no-quibble payout and if you don't use it you get to keep your 'premium'.

Warranties are for mugs.