Please, don't buy 99p cables and chargers, for any phone - they can kill you.
You can also buy tyres and brakes for your car from Ebay (and others) at much lower prices than from OEMs, but it's a gamble that not too many people take.
Sadly, people do not seem to understand the risk that saving...
One phone for me, one for the missus, a couple of chargers and cases, a few apps - I can buy a refurbed BT red telephone box for what that will cost :laugh::laugh::laugh: