Please help me understand this Optimum offer!

Hi,

Anyone else get this offer? I find it confusing:

Bonus Redemption
Get up to $15 off when you redeem 10,000 points or more at Shoppers Drug Mart or Pharmaprix. That's an extra $5!
Expires on: Wednesday May 26th

My questions:
1) Does this mean if my total is $15 after taxes, and I redeem for $10, I will get $5 off and pay $0 out of pocket? And do you think taxes are included or should it be $15 before taxes?

2) Does this mean if I redeem for $20, I will get an additional $!0 off my transaction and if I redeem $30, I will get an additional $15 off my bill? Or it only limited to 1 x 10,000 points redemption?

Thanks for any help you can offer - especially if you've had this offer.

It probably means that if your total is at least $10 but less than $15 before tax, you can redeem 10k for that total (likely the number of full dollars rounded down), and if the total is $15 or more, you can redeem 10k for $15 off.

Multiples of 10k do not apply, so if you spend say $28 and redeem 20k, you will get $15 for the first 10k and the usual $10 for the second 10k.

Thanks @Arjon for weighing in. I did email PCO with my questions but didn't get a response. So I did the offer and made sure to have at least $15 before taxes. The $5 was removed after the Total on the bill and was listed as an "Optimum Discount Adjustment".

Never heard of an offer like this before...