Has anyone experienced lengthy shipping times between the US and the UK? I ordered some small parts ( perhaps a medium Jiffy bag at it's largest) some 8 weeks ago. The supplier has informed me that they were dispatched 7 weeks ago. He's offered to resend them at his cost and no charge. He's a very genuine chap and running a small one man business so I'd rather give the stuff time to arrive. . . but how long?