@10621173 Still not totally convinced that this is Phereoeca and not Tinea pellionella or another related moth. The former seems to have a black (or very dark) top of all three thoracic segments, whereas yours has less dark marks only on the first two.

There's only 1 GBIF record for 🇵🇭 which comes from #iNaturalist, and with less well-recorded taxa there's a danger that the suggestions are biased by early observations (see this a lot in 🇬🇧).

Family level though is a very safe ID. 

 @2d6fed24 Is that a) just the heat pump; b ) heat pump plus new CH plumbing; or c) all of those plus other work such as insulation? 

 @2d6fed24 AFAIK Supermarket chains (& some other big chains) have had differential pricing by store (probably store segment in practice) for at least 30 years (learnt hard way, Boots, Bootle).

Presumably website prices (excluding Nectar/Clubcard/...) are universal & change over time is what is most interesting. Could do a lot with a sequence of online shopping bills and/or scanned bills. Use #OpenFoodFacts to assist product matching (although IRI had a team of ~16 ftes doing this in the '90s).