Samsung.
Bought a Galaxy S3 probably 10 months ago with a 2 year warranty. Sat on the phone about a month in and cracked the screen, my own fault, have put up with it because phone is usable. About a month ago the headphone jack only started playing out of one side (i.e. no matter what headphones I'd put in, only one would work) and then the SIM card reader packed it in a week later and stopped reading any SIM that got put in.
Rang up Samsung, asked me to send it in for repair - did so 3 weeks ago. Get a call a week later that the screen crack voids the entire warranty, which is BS and although might be correct as per their T&Cs, would not get past any fair trading or consumer protection laws. Told them that, someone agreed, and they said they'd fix the SIM & headphone issue and leave the screen as is. Fine.
Hear nothing for two weeks. Chase it up late last week, they tell me that the SIM card reader is unrepairable so they will replace the phone with a refurb. No issues. Told me it would take 2-3 weeks to arrive. Annoying, but I can deal with that.
Get a call today from someone else to tell me that the condition report has been received by Samsung and that even though the screen was cracked, they would fix that as goodwill. Brought up "umm that's not really the issue, the SIM & headphone jack is" - "oh that's not listed anywhere on the reports I see. let me make a phone call".
End result is that as per the last story I'm told, no one's actually looked at the SIM & headphone issues, they've seen the screen has a crack and sat on it for 3 weeks without looking at it. The latest guy I spoke to will follow up for me and be in touch tomorrow apparently with an update.
FFS. Almost makes me want to go Apple. What a shambles of a company