Upgrading to a Bundle...with a twist

A few days ago, I purchased the pro version of Advanced Module Manager (AMM). In addition, I have a pro version of Modals. I'm now considering a Bundle Subscription.

If I would have purchased the Bundle before buying AMM, I would have paid 149 (the 25% discount). Since I want to buy the Bundle now, can I get a refund on the AMM, and then buy the Bundle. That means i would - in effect - be paying 110 for the bundle?

If this is possible, what's the best way to handle. Perhaps you could give me a coupon code.

Appreciate the direction.

David