If so, then keep driving the loaner they gave you. They are getting paid to let you drive that vehicle. Might as well make them lose out on that deal.
They refused to give a loaner for this long so I ended up buying the LR4 off the lot back in May (I was stranded without a car). What I did get from the dealer's manager is an email explaining exactly what my out of pocket total costs will be to swap the vehicles. Essentially they are giving me back close to the MSRP so this will be a few thousand dollars to swap.