Which bin for till receipts?
Usual answer in the UK
General waste General waste bin
Most shiny till receipts are thermal paper, which should go in general waste rather than paper recycling.
Does every council do this?
Most councils follow the answer above, but bins and sorting rules are set locally, and a few councils still do things differently. If your bin has a sticker, or your council sent a leaflet, follow that. Enter your postcode to go straight to your council's guidance.