Transfer POA tokens to ledger not arrived

Hi communauty,
I sent my PAO tokens to my ledger but they never arrived despite the validation of the transfer. I contacted ledger who cannot solve the problem. how to recover my tokens please?

Connect your ledger through MetaMask to POA Network → Chainlist

Then you can swap your POA to STAKE and STAKE to GNO, here is how: https://www.poa.network/