This was my first ever order with GSF I purchased some filters for a car service. I made the order online and went in to store to collect. I got in to the store 15mins before they closed up, when I was there, I waited a short time to collect my order whilst waiting I noticed the guys started to close the shutters 5mins before 2pm which made me feel rushed. One I received the order I was informed that I must go through the back office to get out as the front entrance is now closed. As a customer this was not a good experience as it felt like a back street store. When I got back to the garage and the filters were changed I was informed by the garage that I have the wrong oil filter but I ordered the correct one online. The garage said they would need to book me in again and I would obviously need to get the correct part. A week later on Saturday I went back to the store which is around a 30min drive from where I live and they apologied because the wrong part was picked up by GSF staff and gave me the correct one. I made them aware that I have had to drive back and I live 30mins away and I have had to book extra time with the garage, Zak at the desk Said 'nothing personal sorry we can't do anything'. I then went away to go back to the garage which is around 20mins away to fit the filter and later I called in to the branch and made a complaint with Barry who said a manager named Paul will call me back on the Monday. I didn't receive any calls from anyone and I called them back on the Thursday to which they then offered to discount the price of the part which was around £6! I spent around an extra 2 hours of my time to get the part, go to the garage and get it fitted and travel back home because of a mistake they made. I feel this could have been avoided if they did not rush on the day. They could have improved their customer service by just discounting the part when I went in instead of waiting a week and making things worse. They didn't even acknowledge the fact that j have had to drive jn again and book time with garage which means extra costs for me. I think GSF need to put themselves in the customers shoes when something like this happens. Human errors are common and OK but it's how you deal with them that matters and on this occasion I feel the service could have been better.