Sadly I work in a lab with no mobile phone reception, and and a landline that won't make external phone calls. I have to sit and watch some numbers on a temperature controller go to 5, then I have to put in a sample, press some buttons, fiddle with a couple of dials, then sit for 45 minutes watching a dial, and press buttons if it starts drifting from 0, discover I've not pressed some of the right buttons, twiddle some dials again, and repeat. This will probably go on until 8pm tonight, and I'll be lucky if I can go out for a wee between now and then. By the time I leave the lab, Evans in Manchester will be shut.
As a result of all the above, I can't call them and ask, so I thought, as I have a functioning internet connection here, and I was curious to find out if I could get my item returned. I could bring the broken bits into work tomorrow you see, and get it returned in the afternoon. However, I don't much fancy brining in a knackered mud guard if there's no point.