"I am sorry for the seller's difficulties but ultimately I did not receive the books. My credits ... " (more) were returned but the situation is difficult to assess."
"Even though the seller suffered a major difficulty I never received the books. Although the situati ... " (more)on is difficult to assess ultimately the books never arrived. I did received a refund of my credits."
"Sorry for the sellers difficulties. My credits were returned even though I had hoped to receive the ... " (more) books. It is difficult to assess but ultimately I did not receive the books."