For even more clarification, it is "3 business days" and not just 3 calendar days.
Here is a "blow by blow" example for you:
If the buyer's 3rd evaluation day ends on May 18th, the buyer messages OfferUp to release the funds. OfferUp will have receipt of confirmation from the buyer on May 21 (the following business day), and on the following the 3rd business day (which is the 3 business days you are inquiring about) is May 24.
In real time....that is 6 calendar days.
If the buyer does not file a claim, it would default on releasing the funds, but OfferUp is giving buyers some leeway on the 3 days of evaluation probably (my opinion) as OfferUp wants to make sure that the buyers are satisfied and to keep the refund % to a mininum. The refund process is cost prohibitive,time consuming, and the most difficult problem to resolve in thse types of transactions.
@BrightMoonstone...I would side with you IF it read like this:
""The buyer’s payment, minus OfferUp’s nationwide posting fee, will be released to the seller no later than 3 business days after delivery."
Unfortunately, that is not all, which is why there is a contingency. You will interpret it anyway you want, but a contingency is there for a reason.
I can't explain anything in plain English, if you don't quote the actual language within the TOS, rather than paraprashing it. Either link them or quote the the actual clause(s) in question.