YABU
and
YANBU
I'm not sure!
YANBU about being pissed off at the garage ringing your DH instead of you, but YABU to have gone and paid (I am guessing) the mid 3 figures, for your new brake pads. As a number of posters have said, you had LOADS more miles left. Our brake pads were 60% 'worn' at our MOT in October 2017, and when we had the MOT in October 2018, (a few weeks back,) they said they are 75% 'worn.' Our mechanic said to check back with them around April, and they will have a look to make sure they are still safe. But that 75% worn is OK, and perfectly safe.
You have basically cut off your nose to spite your face, but then again, they may have needed replacing in the springtime anyway.
People are correct when they say many garages do 'upsell' and try and add shit on to make 100's of extra £££ from you. Usually it's the big name dealers though. Ours is a small garage, run by 3 brothers and their dad, and they're brilliant. We found them 5 or 6 years ago when we moved area. Before that, we took it to the main dealer, and it was not unusual for us to pay £500 to £700 get our car through its MOT, even when it was only 4 or 5 years old!
Some garages are bastards and rip people of something chronic. I have come home in tears from work in the past, when the garage has rung me to say the work needed to pass the MOT will cost £750.
Since we have been in our new place, (5-6 years,) and we have been taking it to this small garage, we have spent less than £500 in five years And the bloomin' car is nearly 10-11 years old now! So we were definitely being ripped off all that time (by the main dealers!) Kwik Fit and Halfords are just as bad. £27 Halfords charged us to supply and fit a headlight bulb a few months ago. When the other one went a month later. our local garage charged us £9! FFS! Someone really needs to stop this happening, coz so many people are being conned.
As a few people have said, don't feel bad. You've done nothing wrong.