No. If the fine print says this, you can only redeem one. If you buy more than one then you have to give them away as gifts to other people.
No. ASEC vouchers are generally not transferrable. Retailers have the right to check and disallow the redemption of the voucher if the voucher is redeemed by a different person.
Each ASEC voucher comes with only one unique serial number. Once that number is redeemed, it is not valid anymore.
Nope. All ASEC vouchers have an expiration date with lots of time for you to redeem them. Please refer to the individual vouchers for expiry date and terms & conditions.
Easy. You print it out, bring it to the retail outlet and redeem it.