I'm a bit confused. Bought a phone from Amazon (UK through AU) on Wednesday and the click tracked through cash rewards but is not showing up as a cashback. I went to have a look at the T&Cs and found this:
Category: Mobile Phones & Wearable Tech 4.00%
Category: Electronics 0.00%
Electronics includes (but not limited to) Bluetooth Speakers, Bluetooth Head & Earphones, Stereo Components, Speakers and Other Electronics. It excludes (but not limited to) TVs, PCs & Accessories, Printers, Projectors, Musical/Recording Equipment, Blu-ray Players, Game Consoles, Mobile Phones & Accessories, Soundbars (which may fall under different categories).
This reads to me that mobile phones are not included in electronics and should be eligible.
The best people to answer this would be CR, send them a ticket or PM TA.