I hope you're happy with the outcome, personally I would not be. LIDL vouchers do not cost LIDL their face value, merely the cost-price of the goods you redeem them against. You didn't pay for the TV with LIDL vouchers but with hard-earned money on which you paid tax, USC, PRSI etc. The Registrar has allowed LIDL to settle "in kind" rather than with a cash refund. I'd also have a problem with being restricted to spending "the settlement" with the retailer I'd had the dispute with. Just my 2d.