Taking users from Offer’s T&C page to Listing or Details page?

Case: In my e-commerce website/mobile-site/mobile-app, we run offers that are shown on PDP (Product Details page). These offers are a bit complicated and hence a detailed T&C page has been created to explain all the details around the same.

User journey: User searches for offers on google - The T&C page of my offer has been indexed by Google and is hence it's link is shown to the User - User clicks on the link - User arrives at T&C page of the offer - User reads the complete T&C of the offer - There is a link on this T&C page that will take user to Listing page (where all the items, on which the offer is applicable are listed) - User clicks on the link - User is taken to the listing page - User chooses his item on the listing page and clicks on the same - User is taken to the PDP of the item - User reads the offer's text on the PDP (this re-affirms him that he is on the correct journey to avail the offer) - User adds the item to cart; thus availing the offer; and eventually buys the same.

Question: Assume this journey now: User comes to my website - User arrives at PDP of an item that he would like to buy - User reads the offer's text on the PDP - User also sees a T&C link below the offer's text (This is the link to same T&C page of the offer, that I mentioned in the previous journey) - User clicks on the T&C link - User arrives at T&C page of the offer - There is a link on this T&C page that will take user to Listing page (where all the items, on which the offer is applicable are listed)

Now, the question is that how will the user go back to the PDP that he just came from? Should user click on the link on this T&C page that will take user to Listing page and then he should search for his item there? Should I expect him to use Browser's or Device's back button?