****ED off!Settle for what I dont want?

I receive my new upgraded phone Iphone 6S 64gb in Rose Gold. 2nd day-ph charges to 46%,next morning phone shows 46%.I switched it off & on, then showed 100%.3 days go by, the same happens yet, it 'charged' to 36%.19.01 I call & speak with Team Leader Scott after hearing the process.I explained to him about my exams & that my GPS is needed,no worries he assured me.02.02 we arrange for the reversal.Phone is collected on 08.02 to which Scott said he would follow up (To date Scott hasn't called me)11.02 I speak to Agent Kugan Pillay who assisted me to the best of his ability on that morning & due to circumstances.I had originally signed up for an upgrade for X amount,& now this package is no longer available & only available at an increased package!I've not had a ph for a month,so I've been billed for the month of Feb,even tho I didn't use it.18.01 Jugan advised he will check their ETA report an advise if Rose Gold will be available, to which he advised this morning he doesn't think it will be coming in from Apple.Extremely upset I speak to his Manager (Lenon) Now I am sitting with a situation where I have to settle on a phone & package that I didn't initially signed up for.