I purchased 3 "Professional" quality frying pans with a 25 year guarrantee and after 3 weeks of use in a DOMESTIC kitchen, the surface of the 3 pans appeared to be scuffed and were rough to the touch. I contacted Procook who sent me a long questionnaire to fill out and their analysis is that I have been moving the food round the pan too vigorously!!! They have decided this from a few photos taken with my mobile and my claim for refund/replacement has been denied under the terms of the guarrantee. Pretty shoddy for pans that cost nearly £100 EACH! I am now going to Trading Standards and hopefully will get a charge back as I paid by Credit card. The only silver lining is thank God I didn't buy the knives too!!