Walmart review: Ghost control gate opener

I purchased from Walmart online a ghost control gate opener with sole kit included, except there was no solar panel. I got all the wiring and brackets for the solar panel but no solar panel. I contacted Walmart and they said the seller was through marketplace and would contact me, but never did. I again contacted. Walmart who told me I could return the gate opener for a refund, however I had the gate opener professionally installed as I’m a 100% disabled veteran. Now the battery pack is dead and the gate will not open. Why won’t they just send me my solar panel? I paid for a solar panel kit but got ripped off. I have no recourse to get my money back without paying the man who installed the gate opener to remove it again for return. Then, I’m back at square one.