Add voucher saving capability to mobile web app

We have a mobile web app that lets users browse for discounts in shops, bars etc in specific locations. They view lists of discounts for each shop/bar in each location. Clicking on a discount gives them a description of the venue, from which they can access an on-screen voucher that they simply flash at the counter of the venue to benefit from the discount. The functionality above has already been completed. We just need to add the following functionality: 'My Vouchers' - every voucher that a user selects needs to be saved to a new section of the mobile web app entitled 'My Vouchers'. This section will contain a list of vouchers saved by the user. Each voucher from this 'My Vouchers' list can be displayed on-screen by tapping it from the list. - Back office already complete - including recording of vouchers for users.