I purchased a synthetic oil change package for my ...

I purchased a synthetic oil change package for my 2011 Dodge Ram 2500 in June 2018. I noticed that the sticker in my truck said my next oil change was 5000 miles away. Synthetic oil change intervals on this truck are supposed to be 8000 miles. I also noticed that on the work order that I received they used 15W40 and when looking up the SKU, I realized it was regular cheap conventional oil. I called thinking this was a mistake, and my service writer told me that it was just the sticker that was wrong, and at that point I knew he was lying to me. After speaking with the Director of Service at the time, Shay, he promised me a full refund. Well today is August 9th 2018 and still no refund has been given to me. All I get is the runaround and I am out over $200 for the package that I bought. I would give this place zero stars if I could.