You cannot get a refund on VAT if you live in the Channel Islands. The Channel Islands are not part of the UK for VAT purposes, so orders going to the Channel Islands are treated as zero-rated exports.
However, the total amount that you pay for your order will not change. This is because we take into account the costs of doing business across all jurisdictions, and price our products based on a variety of commercial market factors. This means our customers experience a single sales price around the world, regardless of where they shop with us, albeit subject to minor price differences due to FX rates.