Is there anywhere locally still participating in the CERT DIY loft insulation scheme, need a few extra rolls to top up for winter but can only find the ones where someone comes in and does it for you.
B&Q did have rolls for £3 but now selling for £28 and Homebase is the same.

Have you tried Warmer Wirral?

What about local builders merchants e'g. Huws Gray, Dodds in Moreton, Jewsons etc?

Never buy insulation after September best prices June / July

Give John and Jamie a ring on 07719211807 they are self employed loft insulators and are toping up peoples lofts for free till December, if you have less than 200mm of insulation in your loft and have not had it reinsulated in the last 5 years it will need a top up to the regulation 270mm it dosent matter if you are a home owner and working you could still qualify for free insulation no strings or hidden costs give them a phone and see.