F30, Rojash & sherrardk are all correct the 1979 sale of goods act has a requirement that “goods must correspond to their description” these goods were not what you ordered and further they are incorrectly labelled. You should act reasonably quickly but the delay is not unreasonable in the circumstances you describe. I suggest you pursue the supplier for either a return of your money or replacement and correct goods, the choice is yours, and these things are often best done in writing.