If you have £8 in your pocket and can choose either offer as many times as you want, then you can get an extra £60 worth of vouchers with the £10 for £1 deal.
Even if the offer isn’t repeated, there’s a possible opportunity cost if you need to buy something from another shop that won’t honor the voucher.
In any case, this is secondary to the meta reading comprehension question about what the text is trying to say (whether or not it’s employing good reasoning to say it).
If you have £8 in your pocket and can choose either offer as many times as you want, then you can get an extra £60 worth of vouchers with the £10 for £1 deal.
Even if the offer isn’t repeated, there’s a possible opportunity cost if you need to buy something from another shop that won’t honor the voucher.
In any case, this is secondary to the meta reading comprehension question about what the text is trying to say (whether or not it’s employing good reasoning to say it).