Worst Service for a Loyal Customer..

I've been using Cell C for +10 years now.. but the Service me and my wife is getting Is rediculous, and poorly for loyal customers.. my wife took my phone to Cell C Outlet after my 7-8 months Samsung Note 10 lite didn't want to charge or switch on anymore.. I've had such experience before with Samsung poor batteries phones. Now they say they can't assist us with replacement or repairs as the Note 10 lites are no longer produced. But they are still advertising it for Sale.. My biggest mistake was to inform my friends and family that this is the best phone I've used.. they also bought them. Now they'll experience the same thing when it suddenly stops working like mine did... It's been more than 2months since we took my phone in.. they don't call to let us know what's happening..