Shell is once again driving value for motorists in Singapore with its 'WinWithShell' promotion.

Taking place between the 19^th of May and the 13^th of July, Shell Escape members who spend at least $50 on Shell fuels and spot the winning message on the back of their receipts will instantly win the equivalent of their fuel purchase.

Shell will match the amount spent - dollar for dollar - rounded up to the nearest $10. Moreover, customers who pay with their Citibank credit cards will win double the amount spent.

Winning Shell Escape members are also entitled to be one of the 20 lucky winners to walk away with additional $100 in fuel vouchers.

All they have to do is upload a selfie, or a picture captured by the cashier, of their win, onto their Instagram or Twitter account accompanied by the hashtag #WinWithShell. They could also email the photo with their name, NRIC and contact number to [email protected].

Participating entries, along with terms and conditions, for the promotion can be viewed at Shell's website.