So, I've just been to a mechanic that a friend recommended.
As it turns out - one nut was stuck but he was able to take it off by heating it. Halfords couldn't have tried very hard with that. The second bolt had been snapped off. I don't know if halfords did this or if it was like that before, but they didn't mention it to me.
Anyway, the mid-pipe was a doddle to remove, and the broken bolt has been replaced. Just waiting for a new mid-pipe now.
This guy's charging me £50 for labour and I've bought the part for £25.
As it turns out - one nut was stuck but he was able to take it off by heating it. Halfords couldn't have tried very hard with that. The second bolt had been snapped off. I don't know if halfords did this or if it was like that before, but they didn't mention it to me.
Anyway, the mid-pipe was a doddle to remove, and the broken bolt has been replaced. Just waiting for a new mid-pipe now.
This guy's charging me £50 for labour and I've bought the part for £25.