£14 at evans with a replacement spoke and they tried to sort out a flat spot.
Did they make any headway with the flatspot?
I think £10 for the trueing and a pound per spoke is about usual round these parts. For which you might hope tensioning would be included.
Sadly this is often not the case, as with a wheel I left at the shop, which was returned with a habit of springing out of true under load. Very disappointing especially as they tried to sell me a new wheel.
This drove me to DIY and I have not looked back since.
An old set of forks make for a good stand.