I bought some in Merthyr tescos expecting to pay £1.50 got to the checkout to find they charged £3.90, Made a fuss about them showing one pricce on the goods and charging a differnt price at the till managed to get a refund after a big row with the staff and the manager. Tescos are past masters in doing that old trick. In their Ystrad Mynach store they did car owners out of £32,5000 over 3 years by fiddling the petrol pumps and ended up with a very very heavy fine. They have also been caught out short weights in Aberdare, Caerphilly Neport and Cardiff - so buyer beware