Apple Warranty and Accountability

Dear Apple. I have an iphone 6. Recently it was the victim of your your poor programming and oversight regarding a date change on the phone rendering it utterly useless. Apparently your reasoning for the oversight is time travel! At this point I wish I could time travel and never sign a contract for an Iphone. You clearly dont understand that customer service and treating customers fairly is a legal requirement in South Africa whether your company's services are rendered first or second hand via a network provider. You emphatically state on your website that all phones that were victims of this retro programming fault and within their 90 day warranty period will be replaced..... Thus far all CELL C , the network provider in question have done is waffle and try get out of it! I feel that you should insist they uphold the warranty or stop supplting them and tarnishing your brand with their apathetic service.