Still not quite sure what you mean by cheap, dallasmaniac. Sorry If I'm being a bit dim here. All I'm trying to do is find a happy medium with my iPhone. After my initial purchase I realised the space grey 6s+ with a black Apple case looked bland. petty? maybe, but if I'm buying the phone outright ( I think you guys call it off-contract) I want to be happy with my purchase - I also want it to look great. That's why I exchanged it for the Silver 6s+ with the white front and a tan colour leather Apple case. Imho, this is a great looking set-up.
However, after a few days, I realised that it's just a bit too big for me and I would like to exchange it for the same aesthetic set-up, albeit with the smaller 6s device.
I was just worried that the Apple store may say no because I have exchanged it once already. To be fair to my local Apple store (Plymouth UK), I have purchased and returned quite a few devices over the years for various reasons and I haven't had a problem so far - I would go as far to say they have been very accommodating. Kudos to them for this.