I used to use National until they left two deep score marks across the inside of my allows from a screwdriver used to remove the old weights, Monkeys could have done it more carefully.
Garage that services our cars couldn’t get the tyres I wanted for my NC so ordered from BC. Easy order process, good prices, delivered to our garage for fitting next day. From my one experience I would say I would definitely use them again.
Thread update to say, the 4th tyre arrived late Friday afternoon.
My beef with them is lack of communication throughout the transaction.
I used Asda Tyres, with fitting at my local Halfords. Cheaper than BC, and fitting service A1. Great communication at every step, even a phone call from Halfords to confirm the fitting appointment.
I have used blackcircles before and have been great used mobile fitter book by blackcircles and did a great job on my merc , i have them coming out saturday to replace 4 tyres on my MX5
I have always used Blackcircles in the past but switched to Camskill for the latest set and just asked my local garage (who fit for Blackcircles) to fit for me.
Cheaper than Blackcircles overall.
I have just been to collect my wheels from the powder coaters in Brum, unfortunately one of my tyres had a screw in the side wall.
I can only assume that it got impaled after i took the wheels off the car, to go and get them painted.
I started the usual round of online searches, all coming in at roughly the same price ( £108 fitted) .
I then hit on the idea of trying my local independant just round the corner. Same price as online !
( Goodyear Efficientgrip Performance 205/50 R16 )
No deposit, no pre payment, tyre will be here in the morning and I can just drop the bare rim round for fitting… and payment !

Tyrex Shepshed Leicestershire, no conection other than as customer.
So try your local guys too !
I have used BC for over 10 years, and more recently, to replace old tyres with four new Kumho.
Never had a problem and used a local garage, Hipwell, who were very efficient. It meant I checked out their prices for setting up all four corners, and servicing, and came away very impressed, to the point where I will use them in the future.
I used one of the online tyre retailers some while ago and got 8 instead of 4, that’s the better way around for it to go! Since then used a few others and always been fine.
Bank error in your favour! 