I want my Money back

I fix was tasked with replacing a battery on an I Phone 5. They replaced the battery and told me to go home and charge the battery. I questioned this as batteries are usually charged when installed, but their techie on site assured me that this is new school batteries...The battery could not be charged. Had to go back to I fix for a 2nd time to hear that there may be a problem with the charging plug on my phone. It's an old phone, so i told the techie to give me back my money and install the old battery. This was done and the phone was plugged in and charges perfectly with the old battery (which lasts less than an hour which is why i wanted it replaced with a new one). <br> <br> SO I never received the refund promised by the techie on December 20th. I called them today only to hear that the paperwork is missing and i need to come in for a 3rd time.... Can someone from I fix corporate please investigate and call me? I am not going to your store for a 3rd time.