Sony phones not an option to upgrade to or buy

I want to complain about having not an option to upgrade to a new Sony mobile phone or to purchase. These are excellent rugged phonesand have never in the past 15 years given me problems, neither batteries, software or hardware had I had any problems with and I work outdoors and not so friendly phone environments and none have had problems. I take it because they don't break so often they are not a gold mine and so you cannot milk your clients dry like you do with the other makes like Samsung, Huawei, IPhone ect. Please bring back the Sony brand or I will have to buy/import a Sony and might decide to got to another network, pitty it will be a shame as I am one of your oldest clients, and this point is another point how about your loyal customers have you forgotten us as it looks like it as a old Wesbank client they gave me reduced interest rates and at times gifts and I'm not even as long client for them as I'm am by you.