Coupons with wildcards

Hello my friends,

Recently I hit the wall of limitations for Opencart regarding usage of coupons.
I wanted to add bulk coupons for a customer and either I have to pay over $100 for an extension that I use only once (that won't happen), I charge customer with $100 for adding such amount of coupons (that won't happen also), either the customer must spend 2-3 days to add 50-60 coupons (most frequent situation).

What I was thinking as a core implementation is the "Use of Wildcards for Coupons".
Example:
1. Creating coupon: DEMO*
2. Shop owner promotes the coupons: DEMO1907 and DEMO1908
3. Customers use these codes to get their discounts.

It's a win-win situation: developers don't waste time adding these coupons and shop owners reduce costs or time for adding bulk coupons.

Thanks,
URAGANU