When you try other bank affiliate link (like BofA), the existing promo of the 10% off will be taken off from $39 (Chase) so that you can still avail that $20 off again by paying the full $39.
Below is the link:
https://offer.love/offers/intuitturbotax/earn-20-on-your-turbotax-purchase-when-you-spend-39-or-more...
I tried the same and it worked.
