kittens plz be careful in Glenrothes, Fife for sale

Please when buying a kitten be careful we bought one on Friday the 17 after noticing it had fleas we took it to the vets it was treated but because it was so badly infested we were told to keep an eye on it come the following Tuesday the kitten still wasn't eating we took it back to the vets and it had to be put to sleep as it has contacted a blood disease from the fleas, we got another kitten on the Wednesday and that also was crawling in fleas we didn't notice it was at its pet check at the vets, I know with the weather they are a problem just now however they really can be dangerous for kittens, so that now a huge vet bill and the cost of getting our house treated when it really can be so easily treated the stuff from the poundshop doesn't work hence why it's so cheap!