Just really bemused with this firm. Their courier is so bad I won't use them again. All went well when ordering, then when DPD got their hands on it , all went pear shaped. DPD sent me a note saying they would deliver on 6 July, but they did not turn up. They sent me an email saying they had left it on the rear porch that day, but they had not. Then they tried to deliver on 7 July but as I did not know they would and was out, they left with the package. It was a spark plug , that any sensible person would have put through my letterbox. Then I never heard from them again. I went on the DPD website to find they hadn't bothered to redeliver and have sent the part back to GSF. GSF were hopeless, never contacted DPD and had no idea what was going on. I asked them to send me a replacement by Royal mail, or a refund. They said they would refund me but so far (13 July) have not. Useless and frustrating.