A Welsh Government spokesperson said:
"We do not control the tolls - the UK Government do. That's why we have called on the UK Government to open discussions with us on the arrangements governing the Severn Crossings after 2018."
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The heavy showers will ease during the first part of tonight, leaving a dry night with mist in places.
A 1950s pin-up girl from the Vale of Glamorgan has returned to the spot where she won the nation's hearts.
The band play the Liberty Stadium on Saturday night as part of their 'Everything Must Go' 20th anniversary tour.