Being charged yet swap failed

swapping approx £100 eth to Shib in uniswap, first attempt looked like all was working fine got to the “confirm in wallet message “ waited nothing in wallet changed after another 5 mins eth total dropped by approx £30 instead shib didn’t increase I value at all performed transaction again went through fine looks like I paid close to £60 for a single transaction, this also happened the other day so I got into habit taking screen shots showing wallet as I’m swapping