modify tier pricing functions on third party extension(mageworx)

modify tier pricing function on third party extension(mageworx) the Magento Advanced Product Options extension, has a bug. if the one-time option is enable, the tier pricing is not working. "One-time – if enabled, custom option’s price will be added only once to product total despite the quantity of products added to cart (Technical note: the option's price is being divided by the qty of products added to the cart, though appears as a whole value in the cart)" Acceptance criteria: if a custom option has one-time option enable, the tier prices of that custom option should works, even the ajax refresh on frontend. The normal way of the tier pricing is always goes lower, but we need to charge a lower price on the first level, on the second level a higher and a lower price on the followings levels. Acceptance criteria: this tier pricing should works on any custom option: price: 1 and above 0.0 667 and above 0.85 800 and above 0.80 667 and above 0.75