My 2024 Topps Chrome Update mega boxes were opened by FedEx

Really not sure what to do here. Haven’t bought any cards since I was younger and thought I’d get in on the hype behind the 2024 Topps Chrome update. I was able to get 2 mega boxes through Best Buy for retail. They took over 10 days to get here. They literally just arrived and the I could tell immediately that my package had been opened prior. Any advice would be appreciated…