i did a trade with someone and i have been notified that 2 of the discs are the same . these are the episodes i need

Episodes 11. Our Man in the Slammer (6 Nov. 1983)

12. Looking Forward to the Past (20 Nov. 1983)

13. Valerie's Fan (4 Dec. 1983)

14. Happy Medium (11 Dec. 1983)

18. An Old Flame Flickers (15 Jan. 1984)

if you can help me please message me asap i need these for me and a person i traded the discs with