Cracked iPhone 6 screen replacement advice?

I was out Saturday night when a guy accidentally slapped my iPhone out my hand and it cracked on the floor (despite it being in a protected case, evidently not protective enough). I called up a local shop and they said it would be £70. Apple are charging £86.55. BBC reported that on the latest update Apple have been able to tell if your phone has been tampered with via a third party therefore permanently blocking the phone with 'Error 53'. I also have a friend that offered to do it cheap but I'm wondering if it's worth it after reading all the reports on Apple blocking phones. £86 is a HUGE dent in my bank balance after paying the house rent, the screen is so cracked though that you can hardly read any writing on it. So I'm wondering if it's worth going to a third party? Or whether I should go to Apple? Has anyone had their phone screen replaced via a third party since the update and it's been okay? It's just very unclear on the specifics Apple mean when talking about the repairs through third parties.

Why does my son think he can get anything he wants in life?

He lives in a big house with us but he has his own iPhone 6 and 3 cats and a dog and a pet off his choice and he has a iPad and a apple laptop computer and a £100 wrist watch and a 3d tv thats voice activated and a ps4 and his celeb crush said he is cute and follows him on twitter with 9 other celebs that follow him on twitter and inboxed him first once and he has his own attractive hairdresser and all the girls find him cute too and he don't even find it a big deal anymore when a celeb notices him and replies to him on social media but his attitude now is i can get what ever the hell i want in life and i will get it why does he think this now

How much is iPhone 5s worth now?

I have a iPhone 5s that i want to sell, it in perfect condition because i have only had it sense august and kept it in a life proof, so no scratches. It's a 16g Black model. I have seen a few on Ebay going for $400 but all i really want is $300 to $350 for it, but on gazel it's offering only $260 for it though. So what should i be selling it for? I'll also include the life proof with it if it helps.

My iPhone will usually connect to my wireless internet?

My iPhone will connect to my Wi-Fi network but usually I have to restart the router due to the router slowing down. This afternoon I reset my router and then my iPhone (6S) could no longer find my network, even though my computer told my that I had internet access with my connection. I've tried to go in and manually "enter" my Wi-Fi network but my iPhone keeps telling me that it can't find my network. I've tried restarting my iPhone several times but haven't had success.

Does IPhone 6S/6S plus SIM card works in 2 different countries?

So I currently live in Canada and I'm moving to Thailand in June 2016
I'm planning to buy an iPhone 6S before I move so if I buy a sim free iPhone in Canada will I be able to buy a plan from a Thai carrier back there?
Please only serious answers and thank you I will be checking on this several times a week.

Added (1). I have found the answer thank you very much but keep posting about iPhone and apple and if you think the price will go down after 5SE and 7

How to fix iPhone that dropped in water?

So I was about to use the restroom and my iPhone 6 fell out my back pocket and landed in the toilet. It sat in the water for literally like 2 seconds. My finger touch isn't working and I do have some cracks in my phone. I was going to put it in rice but I don't have any. Can the phone repair people fix this? Do you think water got in my phone? And how else can I fix it?