Who I have the same questioned this topic

I ordered an iphone on 12/23 for same day delivery and paid for it in full.  My order was cancelled by Verizon for no reason.  I've been on phone with Verizon 4x since then and each time they say the order will be canelled in the system and my charge will be credited.  Today my call was disconnected.  The charge is still on my credit card.  I ended up going in store to buy the phone and did the payment plan on my bill.  How can I get this credit for first order back to my charge??? I have already spent hours on hold and talking to verizon.