Hi,
For 22 to 24 March 1941 there are entries in the Anlage to Lagebericht 577 (8.4.41)
21.3.41 20:10-20:15 I./KG 27 Merchant 4000 t South of Swansea Bay German Claim Sunk - Hit amidships, explosion and ship sank in 10 minutes.
21.3.41 20:10-20:15 I./KG 27 Tanker 4000 t South of Swansea Bay German Claim- 1 hit deck, 1 amidships, ship exploded, in 2-3 minutes sunk.
22.3.41 16:35 I./KG 27 Merchant 3000 t St George's Channel German Claim - 1 SC 500, hit amidships, ship sank immediately.
24.3.41 19:23 III./KG 27 Merchant 2000 t Bristol Channel German Claim - Damaged, 26 SC 50, hit on stern, smoke.
21.3.41 - possibly SS Millisle (617 t) en route from Cardiff to Cork - sunk near Helwick Light Buoy, Bristol Channel.
22.3.41 - Possibly SS Saint Fintan (495t) sunk near The Smalls, Marloe Pen. Pembrokeshire.
22.3.41 - Norwegian steamer INGER (1418grt) was damaged by German bombing ten miles south of Smalls.
Sources -
www.naval-history.net and
www.wrecksite.eu
Hope that this is of help.