Sent Matic from Metamask to Coinbase...... Now It's Gone

so i’v been tryin desperately to make this wallet work but its been an absolute nightmare from the beginning.
i converted .005 wrapped ETH into matic tokens on my matic network via metamask.
i then sent The matic tokens to my coinbase polygon address and they’re gone…
I’m certain they have disappeared at this point because i already messed up sending 1 SOL from my metamask wallet to my Polygon address on binance and i’v been told its just gone now.
why would my matic tokens not send from my polygon metamask netowork to my coinbase?