I will never order a product from you again, you a...

I will never order a product from you again, you are frivolous!
I bought a phone, a few months ago, a Samsung Galaxy C8. It simply restarts continuously after an update.
Naturally, with a guarantee, I took him there. 15 days have passed, I call them continuously. I keep the phone on hold for 7 minutes and guess what? I hang up as if all the operators are busy! Roll over the doll as I don't even answer the mail.
I think I will make a complaint to ANPC.
I'm really making fun of customers!