Asked for replacement airtec £10 expansion tank cap under warranty as it was faulty.My god made me feel that i was on trial giving evidence. I paid £150 for tank but was questioning the experience of mechanic, my knowledge, to send pictures of coolant pouring from my new rebuilt engine at a cost £8000 but wasnt interested if this would cause over heating issues and damage to new rebuilt engine for a picture !!!!..Needs training in customer care and not treat them as incompetent. Also to fulfill warranty for customers and not make feel like they have to beg or stand trial for a £10 faulty under warranty cap !!! Will take your money but then be unhelpful reagrding warranty issues and basically treating you as a liar..Be aware of the other side of this seller...Ill be buying from a more professional company.Showed this company and 40 years experience mechanic the emails and they couldn't believe this sellers treatment to a customer.Spent alot of money with this seller but never again after this experience..Beware !!!Also calls you rude when you speak to him as an adult but treats you like an uneducated child !!