Can't find Weth in trust wallet?

some days ago,i send some eth through showing in the picture, the sending is successful, but i cannot see Weth in my trust wallet. Has anyone ever been in this situation? How to extract the Weth ? how to change Weth to eth in trust wallet ?
my trust wallet version is the latest

Hello you have received the WETH on the polygon network and therefore need to add it as a custom token.

got it . now i can see weth in my wallet,thanks a lot . but how to change weth to eth or other coin in trust wallet ?

@ewaiting you have to find an exchange/DEX/DApp that has WETH/ETH or WETH to other tokens pair for swapping.