FBT discount & other promo codes

We are using YITH Frequently Bought Together premium plugin our website.

When a customer adds the bundle selling option with a discount (ex. liver + Cleanse + Release at a special discount rate), the website does not allow to use an additional discount code at the checkout.

Any increase in the basket quantity or any welcome discount code. YITH promo code seems have highest priority and does not allow our visitor to claim any discount.

Is it possible to allow the frequently buy together code to be used with additional offers/promo codes. I look forward to hearing from you