Hello All -
I purchased Frontier flight from ATL, GA to CUN, Mexico roundtrip refundable ticket and was denied entry at CUN airport. There was no written/proper explanation provided by the officials for denying entry at the airport except that I was not having valid documentation to enter their country and they mentioned that airline officials should have checked for the documentation and not have allowed us(4 family members) to board the flight. Immigration officials did not provide it in writing though.

Frontier got me on the next flight back into to STL, Missouri instead of the ATL, GA airport as they did not have flights until the next date. I did not see Frontier agents at the STL airport and took a one way rental to get back home. I reached out to Frontier Support for ticekt amount refund and they are denying any responsibility or fault of theirs. I am not sure what options should I pursue to get my refund. Please help/suggest.