Resale transactions have so many parties involved... any one party making a mistake or responding slowly ripples through the whole thing: the seller, the agent, the buyer, the closing company, and Disney.
I bought through TTS and it all went smoothly looking back on it. In the midst of it I was very anxious for it to close and it seemed to take forever because I NEEEEEEDED those points! If you're a seller and you NEED the money from the sale, it will probably seem to take forever too.
From start to finish our transaction took about 9 weeks total. Most of the wait was waiting on Disney responses.
Hope your sale closes soon.
Stan